Home / 11,278.67-15,564.44-6,242.90

Finding the Fourth Proportional to 11,278.67, 15,564.44 and 6,242.90

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Solution

The fourth proportional to 11,278.67, 15,564.44 and 6,242.90 is: 8,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.67 : 15,564.44 = 6,242.90 : x
  2. Step 2: Convert to fraction form
    11,278.67/15,564.44 = 6,242.90/x
  3. Step 3: Cross multiply
    11,278.67x = 15,564.44 × 6,242.90
  4. Step 4: Simplify right side
    11,278.67x = 97,167,211.26
  5. Step 5: Solve for x
    x = 97,167,211.26/11,278.67
  6. Step 6: Final answer
    x = 8,615.13

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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.