Home / 15,555.41-21,463.66-8,747.47

Finding the Fourth Proportional to 15,555.41, 21,463.66 and 8,747.47

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Solution

The fourth proportional to 15,555.41, 21,463.66 and 8,747.47 is: 12,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.41 : 21,463.66 = 8,747.47 : x
  2. Step 2: Convert to fraction form
    15,555.41/21,463.66 = 8,747.47/x
  3. Step 3: Cross multiply
    15,555.41x = 21,463.66 × 8,747.47
  4. Step 4: Simplify right side
    15,555.41x = 187,752,721.94
  5. Step 5: Solve for x
    x = 187,752,721.94/15,555.41
  6. Step 6: Final answer
    x = 12,069.93

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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.