Home / 11,015.28-15,205.08-7,290.48

Finding the Fourth Proportional to 11,015.28, 15,205.08 and 7,290.48

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Solution

The fourth proportional to 11,015.28, 15,205.08 and 7,290.48 is: 10,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.28 : 15,205.08 = 7,290.48 : x
  2. Step 2: Convert to fraction form
    11,015.28/15,205.08 = 7,290.48/x
  3. Step 3: Cross multiply
    11,015.28x = 15,205.08 × 7,290.48
  4. Step 4: Simplify right side
    11,015.28x = 110,852,331.64
  5. Step 5: Solve for x
    x = 110,852,331.64/11,015.28
  6. Step 6: Final answer
    x = 10,063.51

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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.