Home / 10,179.28-15,270.56-4,985.56

Finding the Fourth Proportional to 10,179.28, 15,270.56 and 4,985.56

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Solution

The fourth proportional to 10,179.28, 15,270.56 and 4,985.56 is: 7,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,179.28 : 15,270.56 = 4,985.56 : x
  2. Step 2: Convert to fraction form
    10,179.28/15,270.56 = 4,985.56/x
  3. Step 3: Cross multiply
    10,179.28x = 15,270.56 × 4,985.56
  4. Step 4: Simplify right side
    10,179.28x = 76,132,293.11
  5. Step 5: Solve for x
    x = 76,132,293.11/10,179.28
  6. Step 6: Final answer
    x = 7,479.14

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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.