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Finding the Fourth Proportional to 15,981.07, 22,054.41 and 8,907.07

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Solution

The fourth proportional to 15,981.07, 22,054.41 and 8,907.07 is: 12,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.07 : 22,054.41 = 8,907.07 : x
  2. Step 2: Convert to fraction form
    15,981.07/22,054.41 = 8,907.07/x
  3. Step 3: Cross multiply
    15,981.07x = 22,054.41 × 8,907.07
  4. Step 4: Simplify right side
    15,981.07x = 196,440,173.68
  5. Step 5: Solve for x
    x = 196,440,173.68/15,981.07
  6. Step 6: Final answer
    x = 12,292.05

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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.