Home / 15,130.20-22,679.10-6,808.80

Finding the Fourth Proportional to 15,130.20, 22,679.10 and 6,808.80

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Solution

The fourth proportional to 15,130.20, 22,679.10 and 6,808.80 is: 10,205.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130.20 : 22,679.10 = 6,808.80 : x
  2. Step 2: Convert to fraction form
    15,130.20/22,679.10 = 6,808.80/x
  3. Step 3: Cross multiply
    15,130.20x = 22,679.10 × 6,808.80
  4. Step 4: Simplify right side
    15,130.20x = 154,417,456.08
  5. Step 5: Solve for x
    x = 154,417,456.08/15,130.20
  6. Step 6: Final answer
    x = 10,205.91

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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.