Home / 11,521.17-15,898.95-6,416.55

Finding the Fourth Proportional to 11,521.17, 15,898.95 and 6,416.55

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Solution

The fourth proportional to 11,521.17, 15,898.95 and 6,416.55 is: 8,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.17 : 15,898.95 = 6,416.55 : x
  2. Step 2: Convert to fraction form
    11,521.17/15,898.95 = 6,416.55/x
  3. Step 3: Cross multiply
    11,521.17x = 15,898.95 × 6,416.55
  4. Step 4: Simplify right side
    11,521.17x = 102,016,407.62
  5. Step 5: Solve for x
    x = 102,016,407.62/11,521.17
  6. Step 6: Final answer
    x = 8,854.69

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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.