Home / 12,560.34-18,840.51-5,991.12

Finding the Fourth Proportional to 12,560.34, 18,840.51 and 5,991.12

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Solution

The fourth proportional to 12,560.34, 18,840.51 and 5,991.12 is: 8,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.34 : 18,840.51 = 5,991.12 : x
  2. Step 2: Convert to fraction form
    12,560.34/18,840.51 = 5,991.12/x
  3. Step 3: Cross multiply
    12,560.34x = 18,840.51 × 5,991.12
  4. Step 4: Simplify right side
    12,560.34x = 112,875,756.27
  5. Step 5: Solve for x
    x = 112,875,756.27/12,560.34
  6. Step 6: Final answer
    x = 8,986.68

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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.