Home / 10,961.63-15,127.81-6,245.91

Finding the Fourth Proportional to 10,961.63, 15,127.81 and 6,245.91

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Solution

The fourth proportional to 10,961.63, 15,127.81 and 6,245.91 is: 8,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.63 : 15,127.81 = 6,245.91 : x
  2. Step 2: Convert to fraction form
    10,961.63/15,127.81 = 6,245.91/x
  3. Step 3: Cross multiply
    10,961.63x = 15,127.81 × 6,245.91
  4. Step 4: Simplify right side
    10,961.63x = 94,486,959.28
  5. Step 5: Solve for x
    x = 94,486,959.28/10,961.63
  6. Step 6: Final answer
    x = 8,619.79

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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.