Home / 16,881.80-25,322.70-8,587.40

Finding the Fourth Proportional to 16,881.80, 25,322.70 and 8,587.40

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Solution

The fourth proportional to 16,881.80, 25,322.70 and 8,587.40 is: 12,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.80 : 25,322.70 = 8,587.40 : x
  2. Step 2: Convert to fraction form
    16,881.80/25,322.70 = 8,587.40/x
  3. Step 3: Cross multiply
    16,881.80x = 25,322.70 × 8,587.40
  4. Step 4: Simplify right side
    16,881.80x = 217,456,153.98
  5. Step 5: Solve for x
    x = 217,456,153.98/16,881.80
  6. Step 6: Final answer
    x = 12,881.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.