Home / 14,979.78-20,671.94-8,265.45

Finding the Fourth Proportional to 14,979.78, 20,671.94 and 8,265.45

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Solution

The fourth proportional to 14,979.78, 20,671.94 and 8,265.45 is: 11,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.78 : 20,671.94 = 8,265.45 : x
  2. Step 2: Convert to fraction form
    14,979.78/20,671.94 = 8,265.45/x
  3. Step 3: Cross multiply
    14,979.78x = 20,671.94 × 8,265.45
  4. Step 4: Simplify right side
    14,979.78x = 170,862,886.47
  5. Step 5: Solve for x
    x = 170,862,886.47/14,979.78
  6. Step 6: Final answer
    x = 11,406.23

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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.