Home / 18,678.32-25,773.12-10,500.31

Finding the Fourth Proportional to 18,678.32, 25,773.12 and 10,500.31

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Solution

The fourth proportional to 18,678.32, 25,773.12 and 10,500.31 is: 14,488.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.32 : 25,773.12 = 10,500.31 : x
  2. Step 2: Convert to fraction form
    18,678.32/25,773.12 = 10,500.31/x
  3. Step 3: Cross multiply
    18,678.32x = 25,773.12 × 10,500.31
  4. Step 4: Simplify right side
    18,678.32x = 270,625,685.23
  5. Step 5: Solve for x
    x = 270,625,685.23/18,678.32
  6. Step 6: Final answer
    x = 14,488.76

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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.