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Finding the Fourth Proportional to 7,886.32, 10,883.88 and 4,742.44

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Solution

The fourth proportional to 7,886.32, 10,883.88 and 4,742.44 is: 6,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.32 : 10,883.88 = 4,742.44 : x
  2. Step 2: Convert to fraction form
    7,886.32/10,883.88 = 4,742.44/x
  3. Step 3: Cross multiply
    7,886.32x = 10,883.88 × 4,742.44
  4. Step 4: Simplify right side
    7,886.32x = 51,616,147.87
  5. Step 5: Solve for x
    x = 51,616,147.87/7,886.32
  6. Step 6: Final answer
    x = 6,545.02

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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.