Home / 15,941.04-21,999.24-8,869.20

Finding the Fourth Proportional to 15,941.04, 21,999.24 and 8,869.20

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Solution

The fourth proportional to 15,941.04, 21,999.24 and 8,869.20 is: 12,239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.04 : 21,999.24 = 8,869.20 : x
  2. Step 2: Convert to fraction form
    15,941.04/21,999.24 = 8,869.20/x
  3. Step 3: Cross multiply
    15,941.04x = 21,999.24 × 8,869.20
  4. Step 4: Simplify right side
    15,941.04x = 195,115,659.41
  5. Step 5: Solve for x
    x = 195,115,659.41/15,941.04
  6. Step 6: Final answer
    x = 12,239.83

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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.