Home / 8,128.52-11,216.55-4,591.04

Finding the Fourth Proportional to 8,128.52, 11,216.55 and 4,591.04

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Solution

The fourth proportional to 8,128.52, 11,216.55 and 4,591.04 is: 6,335.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.52 : 11,216.55 = 4,591.04 : x
  2. Step 2: Convert to fraction form
    8,128.52/11,216.55 = 4,591.04/x
  3. Step 3: Cross multiply
    8,128.52x = 11,216.55 × 4,591.04
  4. Step 4: Simplify right side
    8,128.52x = 51,495,629.71
  5. Step 5: Solve for x
    x = 51,495,629.71/8,128.52
  6. Step 6: Final answer
    x = 6,335.18

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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.