Home / 9,115.30-13,666.20-4,735.90

Finding the Fourth Proportional to 9,115.30, 13,666.20 and 4,735.90

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Solution

The fourth proportional to 9,115.30, 13,666.20 and 4,735.90 is: 7,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.30 : 13,666.20 = 4,735.90 : x
  2. Step 2: Convert to fraction form
    9,115.30/13,666.20 = 4,735.90/x
  3. Step 3: Cross multiply
    9,115.30x = 13,666.20 × 4,735.90
  4. Step 4: Simplify right side
    9,115.30x = 64,721,756.58
  5. Step 5: Solve for x
    x = 64,721,756.58/9,115.30
  6. Step 6: Final answer
    x = 7,100.34

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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.