Home / 8,436.40-11,631.36-5,446.96

Finding the Fourth Proportional to 8,436.40, 11,631.36 and 5,446.96

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Solution

The fourth proportional to 8,436.40, 11,631.36 and 5,446.96 is: 7,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.40 : 11,631.36 = 5,446.96 : x
  2. Step 2: Convert to fraction form
    8,436.40/11,631.36 = 5,446.96/x
  3. Step 3: Cross multiply
    8,436.40x = 11,631.36 × 5,446.96
  4. Step 4: Simplify right side
    8,436.40x = 63,355,552.67
  5. Step 5: Solve for x
    x = 63,355,552.67/8,436.40
  6. Step 6: Final answer
    x = 7,509.79

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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.