Home / 10,105.28-15,145.62-4,557.16

Finding the Fourth Proportional to 10,105.28, 15,145.62 and 4,557.16

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Solution

The fourth proportional to 10,105.28, 15,145.62 and 4,557.16 is: 6,830.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.28 : 15,145.62 = 4,557.16 : x
  2. Step 2: Convert to fraction form
    10,105.28/15,145.62 = 4,557.16/x
  3. Step 3: Cross multiply
    10,105.28x = 15,145.62 × 4,557.16
  4. Step 4: Simplify right side
    10,105.28x = 69,021,013.64
  5. Step 5: Solve for x
    x = 69,021,013.64/10,105.28
  6. Step 6: Final answer
    x = 6,830.19

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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.