Home / 8,345.24-12,520.02-3,151.16

Finding the Fourth Proportional to 8,345.24, 12,520.02 and 3,151.16

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Solution

The fourth proportional to 8,345.24, 12,520.02 and 3,151.16 is: 4,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.24 : 12,520.02 = 3,151.16 : x
  2. Step 2: Convert to fraction form
    8,345.24/12,520.02 = 3,151.16/x
  3. Step 3: Cross multiply
    8,345.24x = 12,520.02 × 3,151.16
  4. Step 4: Simplify right side
    8,345.24x = 39,452,586.22
  5. Step 5: Solve for x
    x = 39,452,586.22/8,345.24
  6. Step 6: Final answer
    x = 4,727.56

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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.