Home / 12,291.66-18,432.63-7,937.10

Finding the Fourth Proportional to 12,291.66, 18,432.63 and 7,937.10

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Solution

The fourth proportional to 12,291.66, 18,432.63 and 7,937.10 is: 11,902.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.66 : 18,432.63 = 7,937.10 : x
  2. Step 2: Convert to fraction form
    12,291.66/18,432.63 = 7,937.10/x
  3. Step 3: Cross multiply
    12,291.66x = 18,432.63 × 7,937.10
  4. Step 4: Simplify right side
    12,291.66x = 146,301,627.57
  5. Step 5: Solve for x
    x = 146,301,627.57/12,291.66
  6. Step 6: Final answer
    x = 11,902.51

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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.