Home / 12,349.38-18,513.12-9,440.66

Finding the Fourth Proportional to 12,349.38, 18,513.12 and 9,440.66

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Solution

The fourth proportional to 12,349.38, 18,513.12 and 9,440.66 is: 14,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,349.38 : 18,513.12 = 9,440.66 : x
  2. Step 2: Convert to fraction form
    12,349.38/18,513.12 = 9,440.66/x
  3. Step 3: Cross multiply
    12,349.38x = 18,513.12 × 9,440.66
  4. Step 4: Simplify right side
    12,349.38x = 174,776,071.46
  5. Step 5: Solve for x
    x = 174,776,071.46/12,349.38
  6. Step 6: Final answer
    x = 14,152.62

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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.