Home / 8,340.48-12,507.84-3,142.08

Finding the Fourth Proportional to 8,340.48, 12,507.84 and 3,142.08

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Solution

The fourth proportional to 8,340.48, 12,507.84 and 3,142.08 is: 4,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.48 : 12,507.84 = 3,142.08 : x
  2. Step 2: Convert to fraction form
    8,340.48/12,507.84 = 3,142.08/x
  3. Step 3: Cross multiply
    8,340.48x = 12,507.84 × 3,142.08
  4. Step 4: Simplify right side
    8,340.48x = 39,300,633.91
  5. Step 5: Solve for x
    x = 39,300,633.91/8,340.48
  6. Step 6: Final answer
    x = 4,712.04

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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.