Home / 10,389.03-14,337.38-5,913.20

Finding the Fourth Proportional to 10,389.03, 14,337.38 and 5,913.20

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Solution

The fourth proportional to 10,389.03, 14,337.38 and 5,913.20 is: 8,160.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.03 : 14,337.38 = 5,913.20 : x
  2. Step 2: Convert to fraction form
    10,389.03/14,337.38 = 5,913.20/x
  3. Step 3: Cross multiply
    10,389.03x = 14,337.38 × 5,913.20
  4. Step 4: Simplify right side
    10,389.03x = 84,779,694.16
  5. Step 5: Solve for x
    x = 84,779,694.16/10,389.03
  6. Step 6: Final answer
    x = 8,160.50

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.