Home / 8,438.74-11,645.62-4,902.18

Finding the Fourth Proportional to 8,438.74, 11,645.62 and 4,902.18

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Solution

The fourth proportional to 8,438.74, 11,645.62 and 4,902.18 is: 6,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.74 : 11,645.62 = 4,902.18 : x
  2. Step 2: Convert to fraction form
    8,438.74/11,645.62 = 4,902.18/x
  3. Step 3: Cross multiply
    8,438.74x = 11,645.62 × 4,902.18
  4. Step 4: Simplify right side
    8,438.74x = 57,088,925.45
  5. Step 5: Solve for x
    x = 57,088,925.45/8,438.74
  6. Step 6: Final answer
    x = 6,765.10

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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.