Home / 15,978.38-23,975.76-8,966.30

Finding the Fourth Proportional to 15,978.38, 23,975.76 and 8,966.30

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Solution

The fourth proportional to 15,978.38, 23,975.76 and 8,966.30 is: 13,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978.38 : 23,975.76 = 8,966.30 : x
  2. Step 2: Convert to fraction form
    15,978.38/23,975.76 = 8,966.30/x
  3. Step 3: Cross multiply
    15,978.38x = 23,975.76 × 8,966.30
  4. Step 4: Simplify right side
    15,978.38x = 214,973,856.89
  5. Step 5: Solve for x
    x = 214,973,856.89/15,978.38
  6. Step 6: Final answer
    x = 13,454.05

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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.