Home / 11,128.28-15,357.04-6,412.44

Finding the Fourth Proportional to 11,128.28, 15,357.04 and 6,412.44

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Solution

The fourth proportional to 11,128.28, 15,357.04 and 6,412.44 is: 8,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.28 : 15,357.04 = 6,412.44 : x
  2. Step 2: Convert to fraction form
    11,128.28/15,357.04 = 6,412.44/x
  3. Step 3: Cross multiply
    11,128.28x = 15,357.04 × 6,412.44
  4. Step 4: Simplify right side
    11,128.28x = 98,476,097.58
  5. Step 5: Solve for x
    x = 98,476,097.58/11,128.28
  6. Step 6: Final answer
    x = 8,849.18

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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.