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Finding the Fourth Proportional to 13,599.48, 18,767.48 and 7,630.80

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Solution

The fourth proportional to 13,599.48, 18,767.48 and 7,630.80 is: 10,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.48 : 18,767.48 = 7,630.80 : x
  2. Step 2: Convert to fraction form
    13,599.48/18,767.48 = 7,630.80/x
  3. Step 3: Cross multiply
    13,599.48x = 18,767.48 × 7,630.80
  4. Step 4: Simplify right side
    13,599.48x = 143,210,886.38
  5. Step 5: Solve for x
    x = 143,210,886.38/13,599.48
  6. Step 6: Final answer
    x = 10,530.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.