Home / 14,099.38-21,158.80-13,990.04

Finding the Fourth Proportional to 14,099.38, 21,158.80 and 13,990.04

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Solution

The fourth proportional to 14,099.38, 21,158.80 and 13,990.04 is: 20,994.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.38 : 21,158.80 = 13,990.04 : x
  2. Step 2: Convert to fraction form
    14,099.38/21,158.80 = 13,990.04/x
  3. Step 3: Cross multiply
    14,099.38x = 21,158.80 × 13,990.04
  4. Step 4: Simplify right side
    14,099.38x = 296,012,458.35
  5. Step 5: Solve for x
    x = 296,012,458.35/14,099.38
  6. Step 6: Final answer
    x = 20,994.71

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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.