Home / 8,869.59-12,239.41-4,890.62

Finding the Fourth Proportional to 8,869.59, 12,239.41 and 4,890.62

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Solution

The fourth proportional to 8,869.59, 12,239.41 and 4,890.62 is: 6,748.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.59 : 12,239.41 = 4,890.62 : x
  2. Step 2: Convert to fraction form
    8,869.59/12,239.41 = 4,890.62/x
  3. Step 3: Cross multiply
    8,869.59x = 12,239.41 × 4,890.62
  4. Step 4: Simplify right side
    8,869.59x = 59,858,232.78
  5. Step 5: Solve for x
    x = 59,858,232.78/8,869.59
  6. Step 6: Final answer
    x = 6,748.70

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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.