Home / 13,242.38-18,274.50-7,192.62

Finding the Fourth Proportional to 13,242.38, 18,274.50 and 7,192.62

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Solution

The fourth proportional to 13,242.38, 18,274.50 and 7,192.62 is: 9,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.38 : 18,274.50 = 7,192.62 : x
  2. Step 2: Convert to fraction form
    13,242.38/18,274.50 = 7,192.62/x
  3. Step 3: Cross multiply
    13,242.38x = 18,274.50 × 7,192.62
  4. Step 4: Simplify right side
    13,242.38x = 131,441,534.19
  5. Step 5: Solve for x
    x = 131,441,534.19/13,242.38
  6. Step 6: Final answer
    x = 9,925.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.