Home / 15,304.68-21,119.94-8,590.86

Finding the Fourth Proportional to 15,304.68, 21,119.94 and 8,590.86

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Solution

The fourth proportional to 15,304.68, 21,119.94 and 8,590.86 is: 11,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304.68 : 21,119.94 = 8,590.86 : x
  2. Step 2: Convert to fraction form
    15,304.68/21,119.94 = 8,590.86/x
  3. Step 3: Cross multiply
    15,304.68x = 21,119.94 × 8,590.86
  4. Step 4: Simplify right side
    15,304.68x = 181,438,447.75
  5. Step 5: Solve for x
    x = 181,438,447.75/15,304.68
  6. Step 6: Final answer
    x = 11,855.10

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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.