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Finding the Fourth Proportional to 7,884.26, 10,889.88 and 5,903.54

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Solution

The fourth proportional to 7,884.26, 10,889.88 and 5,903.54 is: 8,154.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.26 : 10,889.88 = 5,903.54 : x
  2. Step 2: Convert to fraction form
    7,884.26/10,889.88 = 5,903.54/x
  3. Step 3: Cross multiply
    7,884.26x = 10,889.88 × 5,903.54
  4. Step 4: Simplify right side
    7,884.26x = 64,288,842.18
  5. Step 5: Solve for x
    x = 64,288,842.18/7,884.26
  6. Step 6: Final answer
    x = 8,154.07

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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.