Home / 11,045.28-15,246.48-7,320.48

Finding the Fourth Proportional to 11,045.28, 15,246.48 and 7,320.48

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Solution

The fourth proportional to 11,045.28, 15,246.48 and 7,320.48 is: 10,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.28 : 15,246.48 = 7,320.48 : x
  2. Step 2: Convert to fraction form
    11,045.28/15,246.48 = 7,320.48/x
  3. Step 3: Cross multiply
    11,045.28x = 15,246.48 × 7,320.48
  4. Step 4: Simplify right side
    11,045.28x = 111,611,551.91
  5. Step 5: Solve for x
    x = 111,611,551.91/11,045.28
  6. Step 6: Final answer
    x = 10,104.91

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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.