Home / 10,143.01-15,219.78-4,948.75

Finding the Fourth Proportional to 10,143.01, 15,219.78 and 4,948.75

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Solution

The fourth proportional to 10,143.01, 15,219.78 and 4,948.75 is: 7,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.01 : 15,219.78 = 4,948.75 : x
  2. Step 2: Convert to fraction form
    10,143.01/15,219.78 = 4,948.75/x
  3. Step 3: Cross multiply
    10,143.01x = 15,219.78 × 4,948.75
  4. Step 4: Simplify right side
    10,143.01x = 75,318,886.28
  5. Step 5: Solve for x
    x = 75,318,886.28/10,143.01
  6. Step 6: Final answer
    x = 7,425.69

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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.