Home / 15,227.52-21,010.08-8,938.68

Finding the Fourth Proportional to 15,227.52, 21,010.08 and 8,938.68

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Solution

The fourth proportional to 15,227.52, 21,010.08 and 8,938.68 is: 12,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,227.52 : 21,010.08 = 8,938.68 : x
  2. Step 2: Convert to fraction form
    15,227.52/21,010.08 = 8,938.68/x
  3. Step 3: Cross multiply
    15,227.52x = 21,010.08 × 8,938.68
  4. Step 4: Simplify right side
    15,227.52x = 187,802,381.89
  5. Step 5: Solve for x
    x = 187,802,381.89/15,227.52
  6. Step 6: Final answer
    x = 12,333.09

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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.