Home / 10,970.96-15,139.58-6,255.02

Finding the Fourth Proportional to 10,970.96, 15,139.58 and 6,255.02

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Solution

The fourth proportional to 10,970.96, 15,139.58 and 6,255.02 is: 8,631.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.96 : 15,139.58 = 6,255.02 : x
  2. Step 2: Convert to fraction form
    10,970.96/15,139.58 = 6,255.02/x
  3. Step 3: Cross multiply
    10,970.96x = 15,139.58 × 6,255.02
  4. Step 4: Simplify right side
    10,970.96x = 94,698,375.69
  5. Step 5: Solve for x
    x = 94,698,375.69/10,970.96
  6. Step 6: Final answer
    x = 8,631.73

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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.