Home / 15,941.61-21,999.43-8,867.88

Finding the Fourth Proportional to 15,941.61, 21,999.43 and 8,867.88

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Solution

The fourth proportional to 15,941.61, 21,999.43 and 8,867.88 is: 12,237.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.61 : 21,999.43 = 8,867.88 : x
  2. Step 2: Convert to fraction form
    15,941.61/21,999.43 = 8,867.88/x
  3. Step 3: Cross multiply
    15,941.61x = 21,999.43 × 8,867.88
  4. Step 4: Simplify right side
    15,941.61x = 195,088,305.31
  5. Step 5: Solve for x
    x = 195,088,305.31/15,941.61
  6. Step 6: Final answer
    x = 12,237.68

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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.