Home / 13,754.28-18,947.28-9,966.24

Finding the Fourth Proportional to 13,754.28, 18,947.28 and 9,966.24

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Solution

The fourth proportional to 13,754.28, 18,947.28 and 9,966.24 is: 13,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.28 : 18,947.28 = 9,966.24 : x
  2. Step 2: Convert to fraction form
    13,754.28/18,947.28 = 9,966.24/x
  3. Step 3: Cross multiply
    13,754.28x = 18,947.28 × 9,966.24
  4. Step 4: Simplify right side
    13,754.28x = 188,833,139.83
  5. Step 5: Solve for x
    x = 188,833,139.83/13,754.28
  6. Step 6: Final answer
    x = 13,729.05

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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.