Home / 8,690.87-12,003.26-5,853.32

Finding the Fourth Proportional to 8,690.87, 12,003.26 and 5,853.32

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Solution

The fourth proportional to 8,690.87, 12,003.26 and 5,853.32 is: 8,084.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.87 : 12,003.26 = 5,853.32 : x
  2. Step 2: Convert to fraction form
    8,690.87/12,003.26 = 5,853.32/x
  3. Step 3: Cross multiply
    8,690.87x = 12,003.26 × 5,853.32
  4. Step 4: Simplify right side
    8,690.87x = 70,258,832.54
  5. Step 5: Solve for x
    x = 70,258,832.54/8,690.87
  6. Step 6: Final answer
    x = 8,084.21

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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.