Home / 8,742.92-13,117.05-5,236.92

Finding the Fourth Proportional to 8,742.92, 13,117.05 and 5,236.92

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Solution

The fourth proportional to 8,742.92, 13,117.05 and 5,236.92 is: 7,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.92 : 13,117.05 = 5,236.92 : x
  2. Step 2: Convert to fraction form
    8,742.92/13,117.05 = 5,236.92/x
  3. Step 3: Cross multiply
    8,742.92x = 13,117.05 × 5,236.92
  4. Step 4: Simplify right side
    8,742.92x = 68,692,941.49
  5. Step 5: Solve for x
    x = 68,692,941.49/8,742.92
  6. Step 6: Final answer
    x = 7,856.98

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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.