Home / 12,158.62-18,246.13-4,762.15

Finding the Fourth Proportional to 12,158.62, 18,246.13 and 4,762.15

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Solution

The fourth proportional to 12,158.62, 18,246.13 and 4,762.15 is: 7,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.62 : 18,246.13 = 4,762.15 : x
  2. Step 2: Convert to fraction form
    12,158.62/18,246.13 = 4,762.15/x
  3. Step 3: Cross multiply
    12,158.62x = 18,246.13 × 4,762.15
  4. Step 4: Simplify right side
    12,158.62x = 86,890,750.46
  5. Step 5: Solve for x
    x = 86,890,750.46/12,158.62
  6. Step 6: Final answer
    x = 7,146.43

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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.