Home / 12,657.33-18,988.16-4,759.56

Finding the Fourth Proportional to 12,657.33, 18,988.16 and 4,759.56

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Solution

The fourth proportional to 12,657.33, 18,988.16 and 4,759.56 is: 7,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.33 : 18,988.16 = 4,759.56 : x
  2. Step 2: Convert to fraction form
    12,657.33/18,988.16 = 4,759.56/x
  3. Step 3: Cross multiply
    12,657.33x = 18,988.16 × 4,759.56
  4. Step 4: Simplify right side
    12,657.33x = 90,375,263.01
  5. Step 5: Solve for x
    x = 90,375,263.01/12,657.33
  6. Step 6: Final answer
    x = 7,140.15

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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.