Home / 15,900.62-21,943.85-8,827.16

Finding the Fourth Proportional to 15,900.62, 21,943.85 and 8,827.16

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Solution

The fourth proportional to 15,900.62, 21,943.85 and 8,827.16 is: 12,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.62 : 21,943.85 = 8,827.16 : x
  2. Step 2: Convert to fraction form
    15,900.62/21,943.85 = 8,827.16/x
  3. Step 3: Cross multiply
    15,900.62x = 21,943.85 × 8,827.16
  4. Step 4: Simplify right side
    15,900.62x = 193,701,721.11
  5. Step 5: Solve for x
    x = 193,701,721.11/15,900.62
  6. Step 6: Final answer
    x = 12,182.03

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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.