Home / 15,055.89-20,777.84-8,683.44

Finding the Fourth Proportional to 15,055.89, 20,777.84 and 8,683.44

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Solution

The fourth proportional to 15,055.89, 20,777.84 and 8,683.44 is: 11,983.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.89 : 20,777.84 = 8,683.44 : x
  2. Step 2: Convert to fraction form
    15,055.89/20,777.84 = 8,683.44/x
  3. Step 3: Cross multiply
    15,055.89x = 20,777.84 × 8,683.44
  4. Step 4: Simplify right side
    15,055.89x = 180,423,126.97
  5. Step 5: Solve for x
    x = 180,423,126.97/15,055.89
  6. Step 6: Final answer
    x = 11,983.56

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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.