Home / 11,747.80-17,685.61-10,140.76

Finding the Fourth Proportional to 11,747.80, 17,685.61 and 10,140.76

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Solution

The fourth proportional to 11,747.80, 17,685.61 and 10,140.76 is: 15,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.80 : 17,685.61 = 10,140.76 : x
  2. Step 2: Convert to fraction form
    11,747.80/17,685.61 = 10,140.76/x
  3. Step 3: Cross multiply
    11,747.80x = 17,685.61 × 10,140.76
  4. Step 4: Simplify right side
    11,747.80x = 179,345,526.46
  5. Step 5: Solve for x
    x = 179,345,526.46/11,747.80
  6. Step 6: Final answer
    x = 15,266.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.