Home / 11,306.28-15,603.30-7,771.08

Finding the Fourth Proportional to 11,306.28, 15,603.30 and 7,771.08

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Solution

The fourth proportional to 11,306.28, 15,603.30 and 7,771.08 is: 10,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.28 : 15,603.30 = 7,771.08 : x
  2. Step 2: Convert to fraction form
    11,306.28/15,603.30 = 7,771.08/x
  3. Step 3: Cross multiply
    11,306.28x = 15,603.30 × 7,771.08
  4. Step 4: Simplify right side
    11,306.28x = 121,254,492.56
  5. Step 5: Solve for x
    x = 121,254,492.56/11,306.28
  6. Step 6: Final answer
    x = 10,724.53

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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.