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Finding the Fourth Proportional to 15,981.04, 22,053.94 and 8,907.91

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Solution

The fourth proportional to 15,981.04, 22,053.94 and 8,907.91 is: 12,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.04 : 22,053.94 = 8,907.91 : x
  2. Step 2: Convert to fraction form
    15,981.04/22,053.94 = 8,907.91/x
  3. Step 3: Cross multiply
    15,981.04x = 22,053.94 × 8,907.91
  4. Step 4: Simplify right side
    15,981.04x = 196,454,512.67
  5. Step 5: Solve for x
    x = 196,454,512.67/15,981.04
  6. Step 6: Final answer
    x = 12,292.97

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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.