Home / 8,888.20-12,265.72-4,909.31

Finding the Fourth Proportional to 8,888.20, 12,265.72 and 4,909.31

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Solution

The fourth proportional to 8,888.20, 12,265.72 and 4,909.31 is: 6,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.20 : 12,265.72 = 4,909.31 : x
  2. Step 2: Convert to fraction form
    8,888.20/12,265.72 = 4,909.31/x
  3. Step 3: Cross multiply
    8,888.20x = 12,265.72 × 4,909.31
  4. Step 4: Simplify right side
    8,888.20x = 60,216,240.24
  5. Step 5: Solve for x
    x = 60,216,240.24/8,888.20
  6. Step 6: Final answer
    x = 6,774.85

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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.