Home / 10,331.80-15,497.70-9,928.60

Finding the Fourth Proportional to 10,331.80, 15,497.70 and 9,928.60

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Solution

The fourth proportional to 10,331.80, 15,497.70 and 9,928.60 is: 14,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.80 : 15,497.70 = 9,928.60 : x
  2. Step 2: Convert to fraction form
    10,331.80/15,497.70 = 9,928.60/x
  3. Step 3: Cross multiply
    10,331.80x = 15,497.70 × 9,928.60
  4. Step 4: Simplify right side
    10,331.80x = 153,870,464.22
  5. Step 5: Solve for x
    x = 153,870,464.22/10,331.80
  6. Step 6: Final answer
    x = 14,892.90

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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.