Home / 10,884.78-15,021.16-6,347.34

Finding the Fourth Proportional to 10,884.78, 15,021.16 and 6,347.34

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Solution

The fourth proportional to 10,884.78, 15,021.16 and 6,347.34 is: 8,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.78 : 15,021.16 = 6,347.34 : x
  2. Step 2: Convert to fraction form
    10,884.78/15,021.16 = 6,347.34/x
  3. Step 3: Cross multiply
    10,884.78x = 15,021.16 × 6,347.34
  4. Step 4: Simplify right side
    10,884.78x = 95,344,334.61
  5. Step 5: Solve for x
    x = 95,344,334.61/10,884.78
  6. Step 6: Final answer
    x = 8,759.42

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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.