Home / 8,589.40-11,850.68-4,812.05

Finding the Fourth Proportional to 8,589.40, 11,850.68 and 4,812.05

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Solution

The fourth proportional to 8,589.40, 11,850.68 and 4,812.05 is: 6,639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.40 : 11,850.68 = 4,812.05 : x
  2. Step 2: Convert to fraction form
    8,589.40/11,850.68 = 4,812.05/x
  3. Step 3: Cross multiply
    8,589.40x = 11,850.68 × 4,812.05
  4. Step 4: Simplify right side
    8,589.40x = 57,026,040.63
  5. Step 5: Solve for x
    x = 57,026,040.63/8,589.40
  6. Step 6: Final answer
    x = 6,639.12

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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.