Home / 9,689.12-13,371.36-5,497.76

Finding the Fourth Proportional to 9,689.12, 13,371.36 and 5,497.76

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Solution

The fourth proportional to 9,689.12, 13,371.36 and 5,497.76 is: 7,587.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,689.12 : 13,371.36 = 5,497.76 : x
  2. Step 2: Convert to fraction form
    9,689.12/13,371.36 = 5,497.76/x
  3. Step 3: Cross multiply
    9,689.12x = 13,371.36 × 5,497.76
  4. Step 4: Simplify right side
    9,689.12x = 73,512,528.15
  5. Step 5: Solve for x
    x = 73,512,528.15/9,689.12
  6. Step 6: Final answer
    x = 7,587.12

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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.