Home / 10,971.46-15,140.55-6,255.64

Finding the Fourth Proportional to 10,971.46, 15,140.55 and 6,255.64

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Solution

The fourth proportional to 10,971.46, 15,140.55 and 6,255.64 is: 8,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.46 : 15,140.55 = 6,255.64 : x
  2. Step 2: Convert to fraction form
    10,971.46/15,140.55 = 6,255.64/x
  3. Step 3: Cross multiply
    10,971.46x = 15,140.55 × 6,255.64
  4. Step 4: Simplify right side
    10,971.46x = 94,713,830.20
  5. Step 5: Solve for x
    x = 94,713,830.20/10,971.46
  6. Step 6: Final answer
    x = 8,632.75

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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.