Home / 11,261.45-15,547.13-7,489.75

Finding the Fourth Proportional to 11,261.45, 15,547.13 and 7,489.75

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Solution

The fourth proportional to 11,261.45, 15,547.13 and 7,489.75 is: 10,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.45 : 15,547.13 = 7,489.75 : x
  2. Step 2: Convert to fraction form
    11,261.45/15,547.13 = 7,489.75/x
  3. Step 3: Cross multiply
    11,261.45x = 15,547.13 × 7,489.75
  4. Step 4: Simplify right side
    11,261.45x = 116,444,116.92
  5. Step 5: Solve for x
    x = 116,444,116.92/11,261.45
  6. Step 6: Final answer
    x = 10,340.06

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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.