Home / 8,345.90-12,521.28-3,957.32

Finding the Fourth Proportional to 8,345.90, 12,521.28 and 3,957.32

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Solution

The fourth proportional to 8,345.90, 12,521.28 and 3,957.32 is: 5,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.90 : 12,521.28 = 3,957.32 : x
  2. Step 2: Convert to fraction form
    8,345.90/12,521.28 = 3,957.32/x
  3. Step 3: Cross multiply
    8,345.90x = 12,521.28 × 3,957.32
  4. Step 4: Simplify right side
    8,345.90x = 49,550,711.77
  5. Step 5: Solve for x
    x = 49,550,711.77/8,345.90
  6. Step 6: Final answer
    x = 5,937.13

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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.