Home / 10,971.24-15,140.34-6,255.72

Finding the Fourth Proportional to 10,971.24, 15,140.34 and 6,255.72

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Solution

The fourth proportional to 10,971.24, 15,140.34 and 6,255.72 is: 8,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.24 : 15,140.34 = 6,255.72 : x
  2. Step 2: Convert to fraction form
    10,971.24/15,140.34 = 6,255.72/x
  3. Step 3: Cross multiply
    10,971.24x = 15,140.34 × 6,255.72
  4. Step 4: Simplify right side
    10,971.24x = 94,713,727.74
  5. Step 5: Solve for x
    x = 94,713,727.74/10,971.24
  6. Step 6: Final answer
    x = 8,632.91

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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.