Home / 15,314.68-21,134.48-8,601.76

Finding the Fourth Proportional to 15,314.68, 21,134.48 and 8,601.76

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Solution

The fourth proportional to 15,314.68, 21,134.48 and 8,601.76 is: 11,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.68 : 21,134.48 = 8,601.76 : x
  2. Step 2: Convert to fraction form
    15,314.68/21,134.48 = 8,601.76/x
  3. Step 3: Cross multiply
    15,314.68x = 21,134.48 × 8,601.76
  4. Step 4: Simplify right side
    15,314.68x = 181,793,724.68
  5. Step 5: Solve for x
    x = 181,793,724.68/15,314.68
  6. Step 6: Final answer
    x = 11,870.55

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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.