Home / 8,345.16-12,520.98-3,154.68

Finding the Fourth Proportional to 8,345.16, 12,520.98 and 3,154.68

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Solution

The fourth proportional to 8,345.16, 12,520.98 and 3,154.68 is: 4,733.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.16 : 12,520.98 = 3,154.68 : x
  2. Step 2: Convert to fraction form
    8,345.16/12,520.98 = 3,154.68/x
  3. Step 3: Cross multiply
    8,345.16x = 12,520.98 × 3,154.68
  4. Step 4: Simplify right side
    8,345.16x = 39,499,685.19
  5. Step 5: Solve for x
    x = 39,499,685.19/8,345.16
  6. Step 6: Final answer
    x = 4,733.24

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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.