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Finding the Fourth Proportional to 15,971.77, 22,041.08 and 8,898.45

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Solution

The fourth proportional to 15,971.77, 22,041.08 and 8,898.45 is: 12,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.77 : 22,041.08 = 8,898.45 : x
  2. Step 2: Convert to fraction form
    15,971.77/22,041.08 = 8,898.45/x
  3. Step 3: Cross multiply
    15,971.77x = 22,041.08 × 8,898.45
  4. Step 4: Simplify right side
    15,971.77x = 196,131,448.33
  5. Step 5: Solve for x
    x = 196,131,448.33/15,971.77
  6. Step 6: Final answer
    x = 12,279.88

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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.