Home / 10,142.19-15,216.30-3,902.76

Finding the Fourth Proportional to 10,142.19, 15,216.30 and 3,902.76

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Solution

The fourth proportional to 10,142.19, 15,216.30 and 3,902.76 is: 5,855.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,142.19 : 15,216.30 = 3,902.76 : x
  2. Step 2: Convert to fraction form
    10,142.19/15,216.30 = 3,902.76/x
  3. Step 3: Cross multiply
    10,142.19x = 15,216.30 × 3,902.76
  4. Step 4: Simplify right side
    10,142.19x = 59,385,566.99
  5. Step 5: Solve for x
    x = 59,385,566.99/10,142.19
  6. Step 6: Final answer
    x = 5,855.30

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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.