Home / 10,777.38-14,874.60-7,959.39

Finding the Fourth Proportional to 10,777.38, 14,874.60 and 7,959.39

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Solution

The fourth proportional to 10,777.38, 14,874.60 and 7,959.39 is: 10,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.38 : 14,874.60 = 7,959.39 : x
  2. Step 2: Convert to fraction form
    10,777.38/14,874.60 = 7,959.39/x
  3. Step 3: Cross multiply
    10,777.38x = 14,874.60 × 7,959.39
  4. Step 4: Simplify right side
    10,777.38x = 118,392,742.49
  5. Step 5: Solve for x
    x = 118,392,742.49/10,777.38
  6. Step 6: Final answer
    x = 10,985.30

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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.