Home / 12,901.44-17,790.47-9,551.28

Finding the Fourth Proportional to 12,901.44, 17,790.47 and 9,551.28

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Solution

The fourth proportional to 12,901.44, 17,790.47 and 9,551.28 is: 13,170.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.44 : 17,790.47 = 9,551.28 : x
  2. Step 2: Convert to fraction form
    12,901.44/17,790.47 = 9,551.28/x
  3. Step 3: Cross multiply
    12,901.44x = 17,790.47 × 9,551.28
  4. Step 4: Simplify right side
    12,901.44x = 169,921,760.30
  5. Step 5: Solve for x
    x = 169,921,760.30/12,901.44
  6. Step 6: Final answer
    x = 13,170.76

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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.