Home / 25,780.12-38,663.88-8,246.32

Finding the Fourth Proportional to 25,780.12, 38,663.88 and 8,246.32

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Solution

The fourth proportional to 25,780.12, 38,663.88 and 8,246.32 is: 12,367.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.12 : 38,663.88 = 8,246.32 : x
  2. Step 2: Convert to fraction form
    25,780.12/38,663.88 = 8,246.32/x
  3. Step 3: Cross multiply
    25,780.12x = 38,663.88 × 8,246.32
  4. Step 4: Simplify right side
    25,780.12x = 318,834,726.92
  5. Step 5: Solve for x
    x = 318,834,726.92/25,780.12
  6. Step 6: Final answer
    x = 12,367.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.