Home / 14,216.60-19,618.86-8,251.76

Finding the Fourth Proportional to 14,216.60, 19,618.86 and 8,251.76

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Solution

The fourth proportional to 14,216.60, 19,618.86 and 8,251.76 is: 11,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.60 : 19,618.86 = 8,251.76 : x
  2. Step 2: Convert to fraction form
    14,216.60/19,618.86 = 8,251.76/x
  3. Step 3: Cross multiply
    14,216.60x = 19,618.86 × 8,251.76
  4. Step 4: Simplify right side
    14,216.60x = 161,890,124.19
  5. Step 5: Solve for x
    x = 161,890,124.19/14,216.60
  6. Step 6: Final answer
    x = 11,387.40

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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.