Home / 10,051.08-15,082.20-5,121.60

Finding the Fourth Proportional to 10,051.08, 15,082.20 and 5,121.60

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Solution

The fourth proportional to 10,051.08, 15,082.20 and 5,121.60 is: 7,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,051.08 : 15,082.20 = 5,121.60 : x
  2. Step 2: Convert to fraction form
    10,051.08/15,082.20 = 5,121.60/x
  3. Step 3: Cross multiply
    10,051.08x = 15,082.20 × 5,121.60
  4. Step 4: Simplify right side
    10,051.08x = 77,244,995.52
  5. Step 5: Solve for x
    x = 77,244,995.52/10,051.08
  6. Step 6: Final answer
    x = 7,685.24

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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.