Home / 10,881.40-16,331.70-9,326.20

Finding the Fourth Proportional to 10,881.40, 16,331.70 and 9,326.20

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Solution

The fourth proportional to 10,881.40, 16,331.70 and 9,326.20 is: 13,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.40 : 16,331.70 = 9,326.20 : x
  2. Step 2: Convert to fraction form
    10,881.40/16,331.70 = 9,326.20/x
  3. Step 3: Cross multiply
    10,881.40x = 16,331.70 × 9,326.20
  4. Step 4: Simplify right side
    10,881.40x = 152,312,700.54
  5. Step 5: Solve for x
    x = 152,312,700.54/10,881.40
  6. Step 6: Final answer
    x = 13,997.53

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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.