Home / 12,313.30-18,469.95-9,807.70

Finding the Fourth Proportional to 12,313.30, 18,469.95 and 9,807.70

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Solution

The fourth proportional to 12,313.30, 18,469.95 and 9,807.70 is: 14,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.30 : 18,469.95 = 9,807.70 : x
  2. Step 2: Convert to fraction form
    12,313.30/18,469.95 = 9,807.70/x
  3. Step 3: Cross multiply
    12,313.30x = 18,469.95 × 9,807.70
  4. Step 4: Simplify right side
    12,313.30x = 181,147,728.62
  5. Step 5: Solve for x
    x = 181,147,728.62/12,313.30
  6. Step 6: Final answer
    x = 14,711.55

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Similar ratio
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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.