Home / 10,397.42-14,331.56-8,124.78

Finding the Fourth Proportional to 10,397.42, 14,331.56 and 8,124.78

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Solution

The fourth proportional to 10,397.42, 14,331.56 and 8,124.78 is: 11,199.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,397.42 : 14,331.56 = 8,124.78 : x
  2. Step 2: Convert to fraction form
    10,397.42/14,331.56 = 8,124.78/x
  3. Step 3: Cross multiply
    10,397.42x = 14,331.56 × 8,124.78
  4. Step 4: Simplify right side
    10,397.42x = 116,440,772.06
  5. Step 5: Solve for x
    x = 116,440,772.06/10,397.42
  6. Step 6: Final answer
    x = 11,199.01

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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.