Home / 14,710.97-20,298.84-8,422.13

Finding the Fourth Proportional to 14,710.97, 20,298.84 and 8,422.13

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Solution

The fourth proportional to 14,710.97, 20,298.84 and 8,422.13 is: 11,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,710.97 : 20,298.84 = 8,422.13 : x
  2. Step 2: Convert to fraction form
    14,710.97/20,298.84 = 8,422.13/x
  3. Step 3: Cross multiply
    14,710.97x = 20,298.84 × 8,422.13
  4. Step 4: Simplify right side
    14,710.97x = 170,959,367.84
  5. Step 5: Solve for x
    x = 170,959,367.84/14,710.97
  6. Step 6: Final answer
    x = 11,621.22

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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.