Home / 18,671.52-25,765.68-10,287.36

Finding the Fourth Proportional to 18,671.52, 25,765.68 and 10,287.36

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Solution

The fourth proportional to 18,671.52, 25,765.68 and 10,287.36 is: 14,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.52 : 25,765.68 = 10,287.36 : x
  2. Step 2: Convert to fraction form
    18,671.52/25,765.68 = 10,287.36/x
  3. Step 3: Cross multiply
    18,671.52x = 25,765.68 × 10,287.36
  4. Step 4: Simplify right side
    18,671.52x = 265,060,825.80
  5. Step 5: Solve for x
    x = 265,060,825.80/18,671.52
  6. Step 6: Final answer
    x = 14,196.00

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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.