Home / 10,390.08-14,337.76-5,913.12

Finding the Fourth Proportional to 10,390.08, 14,337.76 and 5,913.12

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Solution

The fourth proportional to 10,390.08, 14,337.76 and 5,913.12 is: 8,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.08 : 14,337.76 = 5,913.12 : x
  2. Step 2: Convert to fraction form
    10,390.08/14,337.76 = 5,913.12/x
  3. Step 3: Cross multiply
    10,390.08x = 14,337.76 × 5,913.12
  4. Step 4: Simplify right side
    10,390.08x = 84,780,895.41
  5. Step 5: Solve for x
    x = 84,780,895.41/10,390.08
  6. Step 6: Final answer
    x = 8,159.79

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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.