Home / 6,615.47-9,129.17-3,631.58

Finding the Fourth Proportional to 6,615.47, 9,129.17 and 3,631.58

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Solution

The fourth proportional to 6,615.47, 9,129.17 and 3,631.58 is: 5,011.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.47 : 9,129.17 = 3,631.58 : x
  2. Step 2: Convert to fraction form
    6,615.47/9,129.17 = 3,631.58/x
  3. Step 3: Cross multiply
    6,615.47x = 9,129.17 × 3,631.58
  4. Step 4: Simplify right side
    6,615.47x = 33,153,311.19
  5. Step 5: Solve for x
    x = 33,153,311.19/6,615.47
  6. Step 6: Final answer
    x = 5,011.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.