Home / 18,443.75-25,453.40-13,959.59

Finding the Fourth Proportional to 18,443.75, 25,453.40 and 13,959.59

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Solution

The fourth proportional to 18,443.75, 25,453.40 and 13,959.59 is: 19,265.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443.75 : 25,453.40 = 13,959.59 : x
  2. Step 2: Convert to fraction form
    18,443.75/25,453.40 = 13,959.59/x
  3. Step 3: Cross multiply
    18,443.75x = 25,453.40 × 13,959.59
  4. Step 4: Simplify right side
    18,443.75x = 355,318,831.04
  5. Step 5: Solve for x
    x = 355,318,831.04/18,443.75
  6. Step 6: Final answer
    x = 19,265.00

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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.