Home / 14,505.48-20,017.80-8,217.72

Finding the Fourth Proportional to 14,505.48, 20,017.80 and 8,217.72

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Solution

The fourth proportional to 14,505.48, 20,017.80 and 8,217.72 is: 11,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.48 : 20,017.80 = 8,217.72 : x
  2. Step 2: Convert to fraction form
    14,505.48/20,017.80 = 8,217.72/x
  3. Step 3: Cross multiply
    14,505.48x = 20,017.80 × 8,217.72
  4. Step 4: Simplify right side
    14,505.48x = 164,500,675.42
  5. Step 5: Solve for x
    x = 164,500,675.42/14,505.48
  6. Step 6: Final answer
    x = 11,340.59

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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.