Home / 11,631.12-16,055.07-6,915.39

Finding the Fourth Proportional to 11,631.12, 16,055.07 and 6,915.39

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Solution

The fourth proportional to 11,631.12, 16,055.07 and 6,915.39 is: 9,545.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.12 : 16,055.07 = 6,915.39 : x
  2. Step 2: Convert to fraction form
    11,631.12/16,055.07 = 6,915.39/x
  3. Step 3: Cross multiply
    11,631.12x = 16,055.07 × 6,915.39
  4. Step 4: Simplify right side
    11,631.12x = 111,027,070.53
  5. Step 5: Solve for x
    x = 111,027,070.53/11,631.12
  6. Step 6: Final answer
    x = 9,545.69

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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.