Home / 14,595.13-20,140.14-8,221.38

Finding the Fourth Proportional to 14,595.13, 20,140.14 and 8,221.38

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Solution

The fourth proportional to 14,595.13, 20,140.14 and 8,221.38 is: 11,344.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.13 : 20,140.14 = 8,221.38 : x
  2. Step 2: Convert to fraction form
    14,595.13/20,140.14 = 8,221.38/x
  3. Step 3: Cross multiply
    14,595.13x = 20,140.14 × 8,221.38
  4. Step 4: Simplify right side
    14,595.13x = 165,579,744.19
  5. Step 5: Solve for x
    x = 165,579,744.19/14,595.13
  6. Step 6: Final answer
    x = 11,344.86

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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.