Home / 10,964.06-15,131.28-6,487.08

Finding the Fourth Proportional to 10,964.06, 15,131.28 and 6,487.08

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Solution

The fourth proportional to 10,964.06, 15,131.28 and 6,487.08 is: 8,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,964.06 : 15,131.28 = 6,487.08 : x
  2. Step 2: Convert to fraction form
    10,964.06/15,131.28 = 6,487.08/x
  3. Step 3: Cross multiply
    10,964.06x = 15,131.28 × 6,487.08
  4. Step 4: Simplify right side
    10,964.06x = 98,157,823.86
  5. Step 5: Solve for x
    x = 98,157,823.86/10,964.06
  6. Step 6: Final answer
    x = 8,952.69

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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.