Home / 14,097.38-21,155.80-13,988.04

Finding the Fourth Proportional to 14,097.38, 21,155.80 and 13,988.04

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Solution

The fourth proportional to 14,097.38, 21,155.80 and 13,988.04 is: 20,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,097.38 : 21,155.80 = 13,988.04 : x
  2. Step 2: Convert to fraction form
    14,097.38/21,155.80 = 13,988.04/x
  3. Step 3: Cross multiply
    14,097.38x = 21,155.80 × 13,988.04
  4. Step 4: Simplify right side
    14,097.38x = 295,928,176.63
  5. Step 5: Solve for x
    x = 295,928,176.63/14,097.38
  6. Step 6: Final answer
    x = 20,991.71

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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.