Home / 13,337.64-20,010.78-6,411.24

Finding the Fourth Proportional to 13,337.64, 20,010.78 and 6,411.24

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Solution

The fourth proportional to 13,337.64, 20,010.78 and 6,411.24 is: 9,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.64 : 20,010.78 = 6,411.24 : x
  2. Step 2: Convert to fraction form
    13,337.64/20,010.78 = 6,411.24/x
  3. Step 3: Cross multiply
    13,337.64x = 20,010.78 × 6,411.24
  4. Step 4: Simplify right side
    13,337.64x = 128,293,913.17
  5. Step 5: Solve for x
    x = 128,293,913.17/13,337.64
  6. Step 6: Final answer
    x = 9,618.94

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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.