Home / 9,141.30-13,712.43-2,901.78

Finding the Fourth Proportional to 9,141.30, 13,712.43 and 2,901.78

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Solution

The fourth proportional to 9,141.30, 13,712.43 and 2,901.78 is: 4,352.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.30 : 13,712.43 = 2,901.78 : x
  2. Step 2: Convert to fraction form
    9,141.30/13,712.43 = 2,901.78/x
  3. Step 3: Cross multiply
    9,141.30x = 13,712.43 × 2,901.78
  4. Step 4: Simplify right side
    9,141.30x = 39,790,455.13
  5. Step 5: Solve for x
    x = 39,790,455.13/9,141.30
  6. Step 6: Final answer
    x = 4,352.82

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1.5x scale

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.