Home / 15,941.68-21,999.36-8,867.98

Finding the Fourth Proportional to 15,941.68, 21,999.36 and 8,867.98

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Solution

The fourth proportional to 15,941.68, 21,999.36 and 8,867.98 is: 12,237.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,941.68 : 21,999.36 = 8,867.98 : x
  2. Step 2: Convert to fraction form
    15,941.68/21,999.36 = 8,867.98/x
  3. Step 3: Cross multiply
    15,941.68x = 21,999.36 × 8,867.98
  4. Step 4: Simplify right side
    15,941.68x = 195,089,884.49
  5. Step 5: Solve for x
    x = 195,089,884.49/15,941.68
  6. Step 6: Final answer
    x = 12,237.72

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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.