Home / 10,158.46-15,237.28-3,138.18

Finding the Fourth Proportional to 10,158.46, 15,237.28 and 3,138.18

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Solution

The fourth proportional to 10,158.46, 15,237.28 and 3,138.18 is: 4,707.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.46 : 15,237.28 = 3,138.18 : x
  2. Step 2: Convert to fraction form
    10,158.46/15,237.28 = 3,138.18/x
  3. Step 3: Cross multiply
    10,158.46x = 15,237.28 × 3,138.18
  4. Step 4: Simplify right side
    10,158.46x = 47,817,327.35
  5. Step 5: Solve for x
    x = 47,817,327.35/10,158.46
  6. Step 6: Final answer
    x = 4,707.14

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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.