Home / 11,215.35-15,473.68-6,740.10

Finding the Fourth Proportional to 11,215.35, 15,473.68 and 6,740.10

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Solution

The fourth proportional to 11,215.35, 15,473.68 and 6,740.10 is: 9,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.35 : 15,473.68 = 6,740.10 : x
  2. Step 2: Convert to fraction form
    11,215.35/15,473.68 = 6,740.10/x
  3. Step 3: Cross multiply
    11,215.35x = 15,473.68 × 6,740.10
  4. Step 4: Simplify right side
    11,215.35x = 104,294,150.57
  5. Step 5: Solve for x
    x = 104,294,150.57/11,215.35
  6. Step 6: Final answer
    x = 9,299.23

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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.