Home / 8,388.16-12,584.50-7,470.09

Finding the Fourth Proportional to 8,388.16, 12,584.50 and 7,470.09

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Solution

The fourth proportional to 8,388.16, 12,584.50 and 7,470.09 is: 11,207.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.16 : 12,584.50 = 7,470.09 : x
  2. Step 2: Convert to fraction form
    8,388.16/12,584.50 = 7,470.09/x
  3. Step 3: Cross multiply
    8,388.16x = 12,584.50 × 7,470.09
  4. Step 4: Simplify right side
    8,388.16x = 94,007,328.93
  5. Step 5: Solve for x
    x = 94,007,328.93/8,388.16
  6. Step 6: Final answer
    x = 11,207.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.