Home / 18,397.89-27,588.65-5,247.19

Finding the Fourth Proportional to 18,397.89, 27,588.65 and 5,247.19

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Solution

The fourth proportional to 18,397.89, 27,588.65 and 5,247.19 is: 7,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.89 : 27,588.65 = 5,247.19 : x
  2. Step 2: Convert to fraction form
    18,397.89/27,588.65 = 5,247.19/x
  3. Step 3: Cross multiply
    18,397.89x = 27,588.65 × 5,247.19
  4. Step 4: Simplify right side
    18,397.89x = 144,762,793.19
  5. Step 5: Solve for x
    x = 144,762,793.19/18,397.89
  6. Step 6: Final answer
    x = 7,868.45

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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.