Home / 15,470.26-21,348.64-8,755.76

Finding the Fourth Proportional to 15,470.26, 21,348.64 and 8,755.76

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Solution

The fourth proportional to 15,470.26, 21,348.64 and 8,755.76 is: 12,082.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.26 : 21,348.64 = 8,755.76 : x
  2. Step 2: Convert to fraction form
    15,470.26/21,348.64 = 8,755.76/x
  3. Step 3: Cross multiply
    15,470.26x = 21,348.64 × 8,755.76
  4. Step 4: Simplify right side
    15,470.26x = 186,923,568.17
  5. Step 5: Solve for x
    x = 186,923,568.17/15,470.26
  6. Step 6: Final answer
    x = 12,082.77

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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.