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Finding the Fourth Proportional to 12,299.63, 18,449.51 and 3,065.63

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Solution

The fourth proportional to 12,299.63, 18,449.51 and 3,065.63 is: 4,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.63 : 18,449.51 = 3,065.63 : x
  2. Step 2: Convert to fraction form
    12,299.63/18,449.51 = 3,065.63/x
  3. Step 3: Cross multiply
    12,299.63x = 18,449.51 × 3,065.63
  4. Step 4: Simplify right side
    12,299.63x = 56,559,263.77
  5. Step 5: Solve for x
    x = 56,559,263.77/12,299.63
  6. Step 6: Final answer
    x = 4,598.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.