Home / 18,215.84-25,149.49-14,866.66

Finding the Fourth Proportional to 18,215.84, 25,149.49 and 14,866.66

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Solution

The fourth proportional to 18,215.84, 25,149.49 and 14,866.66 is: 20,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.84 : 25,149.49 = 14,866.66 : x
  2. Step 2: Convert to fraction form
    18,215.84/25,149.49 = 14,866.66/x
  3. Step 3: Cross multiply
    18,215.84x = 25,149.49 × 14,866.66
  4. Step 4: Simplify right side
    18,215.84x = 373,888,816.96
  5. Step 5: Solve for x
    x = 373,888,816.96/18,215.84
  6. Step 6: Final answer
    x = 20,525.47

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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.