Home / 15,318.96-21,141.01-9,348.91

Finding the Fourth Proportional to 15,318.96, 21,141.01 and 9,348.91

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Solution

The fourth proportional to 15,318.96, 21,141.01 and 9,348.91 is: 12,902.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.96 : 21,141.01 = 9,348.91 : x
  2. Step 2: Convert to fraction form
    15,318.96/21,141.01 = 9,348.91/x
  3. Step 3: Cross multiply
    15,318.96x = 21,141.01 × 9,348.91
  4. Step 4: Simplify right side
    15,318.96x = 197,645,399.80
  5. Step 5: Solve for x
    x = 197,645,399.80/15,318.96
  6. Step 6: Final answer
    x = 12,902.01

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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.