Home / 10,152.18-15,227.28-3,130.30

Finding the Fourth Proportional to 10,152.18, 15,227.28 and 3,130.30

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Solution

The fourth proportional to 10,152.18, 15,227.28 and 3,130.30 is: 4,695.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152.18 : 15,227.28 = 3,130.30 : x
  2. Step 2: Convert to fraction form
    10,152.18/15,227.28 = 3,130.30/x
  3. Step 3: Cross multiply
    10,152.18x = 15,227.28 × 3,130.30
  4. Step 4: Simplify right side
    10,152.18x = 47,665,954.58
  5. Step 5: Solve for x
    x = 47,665,954.58/10,152.18
  6. Step 6: Final answer
    x = 4,695.14

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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.