Home / 15,517.61-23,258.18-8,125.55

Finding the Fourth Proportional to 15,517.61, 23,258.18 and 8,125.55

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Solution

The fourth proportional to 15,517.61, 23,258.18 and 8,125.55 is: 12,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.61 : 23,258.18 = 8,125.55 : x
  2. Step 2: Convert to fraction form
    15,517.61/23,258.18 = 8,125.55/x
  3. Step 3: Cross multiply
    15,517.61x = 23,258.18 × 8,125.55
  4. Step 4: Simplify right side
    15,517.61x = 188,985,347.58
  5. Step 5: Solve for x
    x = 188,985,347.58/15,517.61
  6. Step 6: Final answer
    x = 12,178.77

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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.