Home / 18,718.84-25,833.36-10,763.56

Finding the Fourth Proportional to 18,718.84, 25,833.36 and 10,763.56

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Solution

The fourth proportional to 18,718.84, 25,833.36 and 10,763.56 is: 14,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.84 : 25,833.36 = 10,763.56 : x
  2. Step 2: Convert to fraction form
    18,718.84/25,833.36 = 10,763.56/x
  3. Step 3: Cross multiply
    18,718.84x = 25,833.36 × 10,763.56
  4. Step 4: Simplify right side
    18,718.84x = 278,058,920.36
  5. Step 5: Solve for x
    x = 278,058,920.36/18,718.84
  6. Step 6: Final answer
    x = 14,854.50

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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.