Home / 11,308.50-15,605.75-6,272.55

Finding the Fourth Proportional to 11,308.50, 15,605.75 and 6,272.55

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Solution

The fourth proportional to 11,308.50, 15,605.75 and 6,272.55 is: 8,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.50 : 15,605.75 = 6,272.55 : x
  2. Step 2: Convert to fraction form
    11,308.50/15,605.75 = 6,272.55/x
  3. Step 3: Cross multiply
    11,308.50x = 15,605.75 × 6,272.55
  4. Step 4: Simplify right side
    11,308.50x = 97,887,815.80
  5. Step 5: Solve for x
    x = 97,887,815.80/11,308.50
  6. Step 6: Final answer
    x = 8,656.13

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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.