Home / 13,432.13-20,151.61-7,890.16

Finding the Fourth Proportional to 13,432.13, 20,151.61 and 7,890.16

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Solution

The fourth proportional to 13,432.13, 20,151.61 and 7,890.16 is: 11,837.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.13 : 20,151.61 = 7,890.16 : x
  2. Step 2: Convert to fraction form
    13,432.13/20,151.61 = 7,890.16/x
  3. Step 3: Cross multiply
    13,432.13x = 20,151.61 × 7,890.16
  4. Step 4: Simplify right side
    13,432.13x = 158,999,337.33
  5. Step 5: Solve for x
    x = 158,999,337.33/13,432.13
  6. Step 6: Final answer
    x = 11,837.24

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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.