Home / 7,005.36-9,666.94-3,861.55

Finding the Fourth Proportional to 7,005.36, 9,666.94 and 3,861.55

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Solution

The fourth proportional to 7,005.36, 9,666.94 and 3,861.55 is: 5,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.36 : 9,666.94 = 3,861.55 : x
  2. Step 2: Convert to fraction form
    7,005.36/9,666.94 = 3,861.55/x
  3. Step 3: Cross multiply
    7,005.36x = 9,666.94 × 3,861.55
  4. Step 4: Simplify right side
    7,005.36x = 37,329,372.16
  5. Step 5: Solve for x
    x = 37,329,372.16/7,005.36
  6. Step 6: Final answer
    x = 5,328.69

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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.