Home / 10,971.12-15,140.24-6,255.64

Finding the Fourth Proportional to 10,971.12, 15,140.24 and 6,255.64

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Solution

The fourth proportional to 10,971.12, 15,140.24 and 6,255.64 is: 8,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.12 : 15,140.24 = 6,255.64 : x
  2. Step 2: Convert to fraction form
    10,971.12/15,140.24 = 6,255.64/x
  3. Step 3: Cross multiply
    10,971.12x = 15,140.24 × 6,255.64
  4. Step 4: Simplify right side
    10,971.12x = 94,711,890.95
  5. Step 5: Solve for x
    x = 94,711,890.95/10,971.12
  6. Step 6: Final answer
    x = 8,632.84

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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.