Home / 15,994.57-22,070.97-8,921.45

Finding the Fourth Proportional to 15,994.57, 22,070.97 and 8,921.45

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Solution

The fourth proportional to 15,994.57, 22,070.97 and 8,921.45 is: 12,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,994.57 : 22,070.97 = 8,921.45 : x
  2. Step 2: Convert to fraction form
    15,994.57/22,070.97 = 8,921.45/x
  3. Step 3: Cross multiply
    15,994.57x = 22,070.97 × 8,921.45
  4. Step 4: Simplify right side
    15,994.57x = 196,905,055.31
  5. Step 5: Solve for x
    x = 196,905,055.31/15,994.57
  6. Step 6: Final answer
    x = 12,310.74

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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.