Home / 14,505.40-21,758.10-8,993.80

Finding the Fourth Proportional to 14,505.40, 21,758.10 and 8,993.80

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Solution

The fourth proportional to 14,505.40, 21,758.10 and 8,993.80 is: 13,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.40 : 21,758.10 = 8,993.80 : x
  2. Step 2: Convert to fraction form
    14,505.40/21,758.10 = 8,993.80/x
  3. Step 3: Cross multiply
    14,505.40x = 21,758.10 × 8,993.80
  4. Step 4: Simplify right side
    14,505.40x = 195,687,999.78
  5. Step 5: Solve for x
    x = 195,687,999.78/14,505.40
  6. Step 6: Final answer
    x = 13,490.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.