Home / 9,788.83-13,508.72-5,312.64

Finding the Fourth Proportional to 9,788.83, 13,508.72 and 5,312.64

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Solution

The fourth proportional to 9,788.83, 13,508.72 and 5,312.64 is: 7,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788.83 : 13,508.72 = 5,312.64 : x
  2. Step 2: Convert to fraction form
    9,788.83/13,508.72 = 5,312.64/x
  3. Step 3: Cross multiply
    9,788.83x = 13,508.72 × 5,312.64
  4. Step 4: Simplify right side
    9,788.83x = 71,766,872.11
  5. Step 5: Solve for x
    x = 71,766,872.11/9,788.83
  6. Step 6: Final answer
    x = 7,331.51

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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.