Home / 12,581.40-17,359.74-7,544.28

Finding the Fourth Proportional to 12,581.40, 17,359.74 and 7,544.28

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Solution

The fourth proportional to 12,581.40, 17,359.74 and 7,544.28 is: 10,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.40 : 17,359.74 = 7,544.28 : x
  2. Step 2: Convert to fraction form
    12,581.40/17,359.74 = 7,544.28/x
  3. Step 3: Cross multiply
    12,581.40x = 17,359.74 × 7,544.28
  4. Step 4: Simplify right side
    12,581.40x = 130,966,739.29
  5. Step 5: Solve for x
    x = 130,966,739.29/12,581.40
  6. Step 6: Final answer
    x = 10,409.55

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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.