Home / 15,226.13-21,010.05-8,510.94

Finding the Fourth Proportional to 15,226.13, 21,010.05 and 8,510.94

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Solution

The fourth proportional to 15,226.13, 21,010.05 and 8,510.94 is: 11,743.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.13 : 21,010.05 = 8,510.94 : x
  2. Step 2: Convert to fraction form
    15,226.13/21,010.05 = 8,510.94/x
  3. Step 3: Cross multiply
    15,226.13x = 21,010.05 × 8,510.94
  4. Step 4: Simplify right side
    15,226.13x = 178,815,274.95
  5. Step 5: Solve for x
    x = 178,815,274.95/15,226.13
  6. Step 6: Final answer
    x = 11,743.97

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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.