Home / 8,868.91-12,239.05-4,890.02

Finding the Fourth Proportional to 8,868.91, 12,239.05 and 4,890.02

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Solution

The fourth proportional to 8,868.91, 12,239.05 and 4,890.02 is: 6,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.91 : 12,239.05 = 4,890.02 : x
  2. Step 2: Convert to fraction form
    8,868.91/12,239.05 = 4,890.02/x
  3. Step 3: Cross multiply
    8,868.91x = 12,239.05 × 4,890.02
  4. Step 4: Simplify right side
    8,868.91x = 59,849,199.28
  5. Step 5: Solve for x
    x = 59,849,199.28/8,868.91
  6. Step 6: Final answer
    x = 6,748.20

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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.