Home / 9,705.08-13,394.12-5,398.61

Finding the Fourth Proportional to 9,705.08, 13,394.12 and 5,398.61

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Solution

The fourth proportional to 9,705.08, 13,394.12 and 5,398.61 is: 7,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.08 : 13,394.12 = 5,398.61 : x
  2. Step 2: Convert to fraction form
    9,705.08/13,394.12 = 5,398.61/x
  3. Step 3: Cross multiply
    9,705.08x = 13,394.12 × 5,398.61
  4. Step 4: Simplify right side
    9,705.08x = 72,309,576.70
  5. Step 5: Solve for x
    x = 72,309,576.70/9,705.08
  6. Step 6: Final answer
    x = 7,450.70

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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.