Home / 8,868.92-12,239.18-4,890.17

Finding the Fourth Proportional to 8,868.92, 12,239.18 and 4,890.17

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Solution

The fourth proportional to 8,868.92, 12,239.18 and 4,890.17 is: 6,748.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.92 : 12,239.18 = 4,890.17 : x
  2. Step 2: Convert to fraction form
    8,868.92/12,239.18 = 4,890.17/x
  3. Step 3: Cross multiply
    8,868.92x = 12,239.18 × 4,890.17
  4. Step 4: Simplify right side
    8,868.92x = 59,851,670.86
  5. Step 5: Solve for x
    x = 59,851,670.86/8,868.92
  6. Step 6: Final answer
    x = 6,748.47

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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.