Home / 8,752.57-13,128.86-2,909.18

Finding the Fourth Proportional to 8,752.57, 13,128.86 and 2,909.18

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Solution

The fourth proportional to 8,752.57, 13,128.86 and 2,909.18 is: 4,363.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.57 : 13,128.86 = 2,909.18 : x
  2. Step 2: Convert to fraction form
    8,752.57/13,128.86 = 2,909.18/x
  3. Step 3: Cross multiply
    8,752.57x = 13,128.86 × 2,909.18
  4. Step 4: Simplify right side
    8,752.57x = 38,194,257.03
  5. Step 5: Solve for x
    x = 38,194,257.03/8,752.57
  6. Step 6: Final answer
    x = 4,363.77

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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.