Home / 12,073.28-18,110.16-7,939.68

Finding the Fourth Proportional to 12,073.28, 18,110.16 and 7,939.68

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Solution

The fourth proportional to 12,073.28, 18,110.16 and 7,939.68 is: 11,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,073.28 : 18,110.16 = 7,939.68 : x
  2. Step 2: Convert to fraction form
    12,073.28/18,110.16 = 7,939.68/x
  3. Step 3: Cross multiply
    12,073.28x = 18,110.16 × 7,939.68
  4. Step 4: Simplify right side
    12,073.28x = 143,788,875.15
  5. Step 5: Solve for x
    x = 143,788,875.15/12,073.28
  6. Step 6: Final answer
    x = 11,909.68

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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.