Home / 15,901.43-21,943.12-8,827.40

Finding the Fourth Proportional to 15,901.43, 21,943.12 and 8,827.40

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Solution

The fourth proportional to 15,901.43, 21,943.12 and 8,827.40 is: 12,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.43 : 21,943.12 = 8,827.40 : x
  2. Step 2: Convert to fraction form
    15,901.43/21,943.12 = 8,827.40/x
  3. Step 3: Cross multiply
    15,901.43x = 21,943.12 × 8,827.40
  4. Step 4: Simplify right side
    15,901.43x = 193,700,620.56
  5. Step 5: Solve for x
    x = 193,700,620.56/15,901.43
  6. Step 6: Final answer
    x = 12,181.33

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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.