Home / 9,639.70-13,302.78-5,447.96

Finding the Fourth Proportional to 9,639.70, 13,302.78 and 5,447.96

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Solution

The fourth proportional to 9,639.70, 13,302.78 and 5,447.96 is: 7,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.70 : 13,302.78 = 5,447.96 : x
  2. Step 2: Convert to fraction form
    9,639.70/13,302.78 = 5,447.96/x
  3. Step 3: Cross multiply
    9,639.70x = 13,302.78 × 5,447.96
  4. Step 4: Simplify right side
    9,639.70x = 72,473,013.33
  5. Step 5: Solve for x
    x = 72,473,013.33/9,639.70
  6. Step 6: Final answer
    x = 7,518.18

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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.