Home / 9,889.30-13,647.11-5,351.87

Finding the Fourth Proportional to 9,889.30, 13,647.11 and 5,351.87

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Solution

The fourth proportional to 9,889.30, 13,647.11 and 5,351.87 is: 7,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.30 : 13,647.11 = 5,351.87 : x
  2. Step 2: Convert to fraction form
    9,889.30/13,647.11 = 5,351.87/x
  3. Step 3: Cross multiply
    9,889.30x = 13,647.11 × 5,351.87
  4. Step 4: Simplify right side
    9,889.30x = 73,037,562.11
  5. Step 5: Solve for x
    x = 73,037,562.11/9,889.30
  6. Step 6: Final answer
    x = 7,385.52

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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.