Home / 14,781.24-20,394.54-9,188.28

Finding the Fourth Proportional to 14,781.24, 20,394.54 and 9,188.28

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Solution

The fourth proportional to 14,781.24, 20,394.54 and 9,188.28 is: 12,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.24 : 20,394.54 = 9,188.28 : x
  2. Step 2: Convert to fraction form
    14,781.24/20,394.54 = 9,188.28/x
  3. Step 3: Cross multiply
    14,781.24x = 20,394.54 × 9,188.28
  4. Step 4: Simplify right side
    14,781.24x = 187,390,743.99
  5. Step 5: Solve for x
    x = 187,390,743.99/14,781.24
  6. Step 6: Final answer
    x = 12,677.61

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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.