Home / 11,073.28-15,275.76-7,723.84

Finding the Fourth Proportional to 11,073.28, 15,275.76 and 7,723.84

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Solution

The fourth proportional to 11,073.28, 15,275.76 and 7,723.84 is: 10,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,073.28 : 15,275.76 = 7,723.84 : x
  2. Step 2: Convert to fraction form
    11,073.28/15,275.76 = 7,723.84/x
  3. Step 3: Cross multiply
    11,073.28x = 15,275.76 × 7,723.84
  4. Step 4: Simplify right side
    11,073.28x = 117,987,526.12
  5. Step 5: Solve for x
    x = 117,987,526.12/11,073.28
  6. Step 6: Final answer
    x = 10,655.16

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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.