Home / 15,473.24-21,352.78-8,758.76

Finding the Fourth Proportional to 15,473.24, 21,352.78 and 8,758.76

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Solution

The fourth proportional to 15,473.24, 21,352.78 and 8,758.76 is: 12,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.24 : 21,352.78 = 8,758.76 : x
  2. Step 2: Convert to fraction form
    15,473.24/21,352.78 = 8,758.76/x
  3. Step 3: Cross multiply
    15,473.24x = 21,352.78 × 8,758.76
  4. Step 4: Simplify right side
    15,473.24x = 187,023,875.35
  5. Step 5: Solve for x
    x = 187,023,875.35/15,473.24
  6. Step 6: Final answer
    x = 12,086.92

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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.