Home / 14,505.50-20,017.61-8,218.30

Finding the Fourth Proportional to 14,505.50, 20,017.61 and 8,218.30

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Solution

The fourth proportional to 14,505.50, 20,017.61 and 8,218.30 is: 11,341.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.50 : 20,017.61 = 8,218.30 : x
  2. Step 2: Convert to fraction form
    14,505.50/20,017.61 = 8,218.30/x
  3. Step 3: Cross multiply
    14,505.50x = 20,017.61 × 8,218.30
  4. Step 4: Simplify right side
    14,505.50x = 164,510,724.26
  5. Step 5: Solve for x
    x = 164,510,724.26/14,505.50
  6. Step 6: Final answer
    x = 11,341.27

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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.