Home / 8,615.15-12,925.32-2,691.80

Finding the Fourth Proportional to 8,615.15, 12,925.32 and 2,691.80

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Solution

The fourth proportional to 8,615.15, 12,925.32 and 2,691.80 is: 4,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.15 : 12,925.32 = 2,691.80 : x
  2. Step 2: Convert to fraction form
    8,615.15/12,925.32 = 2,691.80/x
  3. Step 3: Cross multiply
    8,615.15x = 12,925.32 × 2,691.80
  4. Step 4: Simplify right side
    8,615.15x = 34,792,298.29
  5. Step 5: Solve for x
    x = 34,792,298.29/8,615.15
  6. Step 6: Final answer
    x = 4,038.50

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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.