Home / 15,471.25-21,347.85-8,754.73

Finding the Fourth Proportional to 15,471.25, 21,347.85 and 8,754.73

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Solution

The fourth proportional to 15,471.25, 21,347.85 and 8,754.73 is: 12,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.25 : 21,347.85 = 8,754.73 : x
  2. Step 2: Convert to fraction form
    15,471.25/21,347.85 = 8,754.73/x
  3. Step 3: Cross multiply
    15,471.25x = 21,347.85 × 8,754.73
  4. Step 4: Simplify right side
    15,471.25x = 186,894,662.83
  5. Step 5: Solve for x
    x = 186,894,662.83/15,471.25
  6. Step 6: Final answer
    x = 12,080.13

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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.