Home / 11,216.40-15,474.12-6,740.40

Finding the Fourth Proportional to 11,216.40, 15,474.12 and 6,740.40

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Solution

The fourth proportional to 11,216.40, 15,474.12 and 6,740.40 is: 9,299.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.40 : 15,474.12 = 6,740.40 : x
  2. Step 2: Convert to fraction form
    11,216.40/15,474.12 = 6,740.40/x
  3. Step 3: Cross multiply
    11,216.40x = 15,474.12 × 6,740.40
  4. Step 4: Simplify right side
    11,216.40x = 104,301,758.45
  5. Step 5: Solve for x
    x = 104,301,758.45/11,216.40
  6. Step 6: Final answer
    x = 9,299.04

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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.