Home / 14,943.29-20,620.78-8,228.59

Finding the Fourth Proportional to 14,943.29, 20,620.78 and 8,228.59

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Solution

The fourth proportional to 14,943.29, 20,620.78 and 8,228.59 is: 11,354.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.29 : 20,620.78 = 8,228.59 : x
  2. Step 2: Convert to fraction form
    14,943.29/20,620.78 = 8,228.59/x
  3. Step 3: Cross multiply
    14,943.29x = 20,620.78 × 8,228.59
  4. Step 4: Simplify right side
    14,943.29x = 169,679,871.98
  5. Step 5: Solve for x
    x = 169,679,871.98/14,943.29
  6. Step 6: Final answer
    x = 11,354.92

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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.