Home / 18,631.13-25,711.36-10,247.63

Finding the Fourth Proportional to 18,631.13, 25,711.36 and 10,247.63

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Solution

The fourth proportional to 18,631.13, 25,711.36 and 10,247.63 is: 14,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.13 : 25,711.36 = 10,247.63 : x
  2. Step 2: Convert to fraction form
    18,631.13/25,711.36 = 10,247.63/x
  3. Step 3: Cross multiply
    18,631.13x = 25,711.36 × 10,247.63
  4. Step 4: Simplify right side
    18,631.13x = 263,480,349.90
  5. Step 5: Solve for x
    x = 263,480,349.90/18,631.13
  6. Step 6: Final answer
    x = 14,141.95

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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.