Home / 6,988.98-9,635.85-5,725.38

Finding the Fourth Proportional to 6,988.98, 9,635.85 and 5,725.38

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Solution

The fourth proportional to 6,988.98, 9,635.85 and 5,725.38 is: 7,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.98 : 9,635.85 = 5,725.38 : x
  2. Step 2: Convert to fraction form
    6,988.98/9,635.85 = 5,725.38/x
  3. Step 3: Cross multiply
    6,988.98x = 9,635.85 × 5,725.38
  4. Step 4: Simplify right side
    6,988.98x = 55,168,902.87
  5. Step 5: Solve for x
    x = 55,168,902.87/6,988.98
  6. Step 6: Final answer
    x = 7,893.70

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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.