Home / 11,378.78-17,056.38-4,357.09

Finding the Fourth Proportional to 11,378.78, 17,056.38 and 4,357.09

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Solution

The fourth proportional to 11,378.78, 17,056.38 and 4,357.09 is: 6,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.78 : 17,056.38 = 4,357.09 : x
  2. Step 2: Convert to fraction form
    11,378.78/17,056.38 = 4,357.09/x
  3. Step 3: Cross multiply
    11,378.78x = 17,056.38 × 4,357.09
  4. Step 4: Simplify right side
    11,378.78x = 74,316,097.45
  5. Step 5: Solve for x
    x = 74,316,097.45/11,378.78
  6. Step 6: Final answer
    x = 6,531.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.