Home / 15,462.25-21,337.91-8,747.74

Finding the Fourth Proportional to 15,462.25, 21,337.91 and 8,747.74

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Solution

The fourth proportional to 15,462.25, 21,337.91 and 8,747.74 is: 12,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,462.25 : 21,337.91 = 8,747.74 : x
  2. Step 2: Convert to fraction form
    15,462.25/21,337.91 = 8,747.74/x
  3. Step 3: Cross multiply
    15,462.25x = 21,337.91 × 8,747.74
  4. Step 4: Simplify right side
    15,462.25x = 186,658,488.82
  5. Step 5: Solve for x
    x = 186,658,488.82/15,462.25
  6. Step 6: Final answer
    x = 12,071.88

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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.