Home / 9,788.82-13,508.47-5,312.55

Finding the Fourth Proportional to 9,788.82, 13,508.47 and 5,312.55

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Solution

The fourth proportional to 9,788.82, 13,508.47 and 5,312.55 is: 7,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788.82 : 13,508.47 = 5,312.55 : x
  2. Step 2: Convert to fraction form
    9,788.82/13,508.47 = 5,312.55/x
  3. Step 3: Cross multiply
    9,788.82x = 13,508.47 × 5,312.55
  4. Step 4: Simplify right side
    9,788.82x = 71,764,422.30
  5. Step 5: Solve for x
    x = 71,764,422.30/9,788.82
  6. Step 6: Final answer
    x = 7,331.26

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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.