Home / 10,998.03-15,178.13-6,522.78

Finding the Fourth Proportional to 10,998.03, 15,178.13 and 6,522.78

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Solution

The fourth proportional to 10,998.03, 15,178.13 and 6,522.78 is: 9,001.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.03 : 15,178.13 = 6,522.78 : x
  2. Step 2: Convert to fraction form
    10,998.03/15,178.13 = 6,522.78/x
  3. Step 3: Cross multiply
    10,998.03x = 15,178.13 × 6,522.78
  4. Step 4: Simplify right side
    10,998.03x = 99,003,570.19
  5. Step 5: Solve for x
    x = 99,003,570.19/10,998.03
  6. Step 6: Final answer
    x = 9,001.94

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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.