Home / 11,517.19-15,875.20-8,602.04

Finding the Fourth Proportional to 11,517.19, 15,875.20 and 8,602.04

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Solution

The fourth proportional to 11,517.19, 15,875.20 and 8,602.04 is: 11,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.19 : 15,875.20 = 8,602.04 : x
  2. Step 2: Convert to fraction form
    11,517.19/15,875.20 = 8,602.04/x
  3. Step 3: Cross multiply
    11,517.19x = 15,875.20 × 8,602.04
  4. Step 4: Simplify right side
    11,517.19x = 136,559,062.40
  5. Step 5: Solve for x
    x = 136,559,062.40/11,517.19
  6. Step 6: Final answer
    x = 11,856.98

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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.