Home / 15,227.91-21,014.55-8,513.55

Finding the Fourth Proportional to 15,227.91, 21,014.55 and 8,513.55

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Solution

The fourth proportional to 15,227.91, 21,014.55 and 8,513.55 is: 11,748.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.91 : 21,014.55 = 8,513.55 : x
  2. Step 2: Convert to fraction form
    15,227.91/21,014.55 = 8,513.55/x
  3. Step 3: Cross multiply
    15,227.91x = 21,014.55 × 8,513.55
  4. Step 4: Simplify right side
    15,227.91x = 178,908,422.15
  5. Step 5: Solve for x
    x = 178,908,422.15/15,227.91
  6. Step 6: Final answer
    x = 11,748.72

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Double scale
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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.