Home / 18,729.40-25,844.70-10,345.36

Finding the Fourth Proportional to 18,729.40, 25,844.70 and 10,345.36

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Solution

The fourth proportional to 18,729.40, 25,844.70 and 10,345.36 is: 14,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.40 : 25,844.70 = 10,345.36 : x
  2. Step 2: Convert to fraction form
    18,729.40/25,844.70 = 10,345.36/x
  3. Step 3: Cross multiply
    18,729.40x = 25,844.70 × 10,345.36
  4. Step 4: Simplify right side
    18,729.40x = 267,372,725.59
  5. Step 5: Solve for x
    x = 267,372,725.59/18,729.40
  6. Step 6: Final answer
    x = 14,275.56

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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.