Home / 11,123.44-15,351.06-6,407.64

Finding the Fourth Proportional to 11,123.44, 15,351.06 and 6,407.64

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Solution

The fourth proportional to 11,123.44, 15,351.06 and 6,407.64 is: 8,842.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.44 : 15,351.06 = 6,407.64 : x
  2. Step 2: Convert to fraction form
    11,123.44/15,351.06 = 6,407.64/x
  3. Step 3: Cross multiply
    11,123.44x = 15,351.06 × 6,407.64
  4. Step 4: Simplify right side
    11,123.44x = 98,364,066.10
  5. Step 5: Solve for x
    x = 98,364,066.10/11,123.44
  6. Step 6: Final answer
    x = 8,842.95

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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.