Home / 9,936.40-13,703.16-7,947.04

Finding the Fourth Proportional to 9,936.40, 13,703.16 and 7,947.04

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Solution

The fourth proportional to 9,936.40, 13,703.16 and 7,947.04 is: 10,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,936.40 : 13,703.16 = 7,947.04 : x
  2. Step 2: Convert to fraction form
    9,936.40/13,703.16 = 7,947.04/x
  3. Step 3: Cross multiply
    9,936.40x = 13,703.16 × 7,947.04
  4. Step 4: Simplify right side
    9,936.40x = 108,899,560.65
  5. Step 5: Solve for x
    x = 108,899,560.65/9,936.40
  6. Step 6: Final answer
    x = 10,959.66

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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.