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Finding the Fourth Proportional to 8,332.90, 12,502.95 and 4,228.90

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Solution

The fourth proportional to 8,332.90, 12,502.95 and 4,228.90 is: 6,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.90 : 12,502.95 = 4,228.90 : x
  2. Step 2: Convert to fraction form
    8,332.90/12,502.95 = 4,228.90/x
  3. Step 3: Cross multiply
    8,332.90x = 12,502.95 × 4,228.90
  4. Step 4: Simplify right side
    8,332.90x = 52,873,725.26
  5. Step 5: Solve for x
    x = 52,873,725.26/8,332.90
  6. Step 6: Final answer
    x = 6,345.18

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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.