Home / 14,979.68-20,671.84-8,265.59

Finding the Fourth Proportional to 14,979.68, 20,671.84 and 8,265.59

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Solution

The fourth proportional to 14,979.68, 20,671.84 and 8,265.59 is: 11,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.68 : 20,671.84 = 8,265.59 : x
  2. Step 2: Convert to fraction form
    14,979.68/20,671.84 = 8,265.59/x
  3. Step 3: Cross multiply
    14,979.68x = 20,671.84 × 8,265.59
  4. Step 4: Simplify right side
    14,979.68x = 170,864,953.99
  5. Step 5: Solve for x
    x = 170,864,953.99/14,979.68
  6. Step 6: Final answer
    x = 11,406.45

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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.