Home / 9,121.63-13,708.08-5,424.52

Finding the Fourth Proportional to 9,121.63, 13,708.08 and 5,424.52

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Solution

The fourth proportional to 9,121.63, 13,708.08 and 5,424.52 is: 8,152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.63 : 13,708.08 = 5,424.52 : x
  2. Step 2: Convert to fraction form
    9,121.63/13,708.08 = 5,424.52/x
  3. Step 3: Cross multiply
    9,121.63x = 13,708.08 × 5,424.52
  4. Step 4: Simplify right side
    9,121.63x = 74,359,754.12
  5. Step 5: Solve for x
    x = 74,359,754.12/9,121.63
  6. Step 6: Final answer
    x = 8,152.02

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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.