Home / 8,870.92-12,231.75-6,629.02

Finding the Fourth Proportional to 8,870.92, 12,231.75 and 6,629.02

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Solution

The fourth proportional to 8,870.92, 12,231.75 and 6,629.02 is: 9,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.92 : 12,231.75 = 6,629.02 : x
  2. Step 2: Convert to fraction form
    8,870.92/12,231.75 = 6,629.02/x
  3. Step 3: Cross multiply
    8,870.92x = 12,231.75 × 6,629.02
  4. Step 4: Simplify right side
    8,870.92x = 81,084,515.39
  5. Step 5: Solve for x
    x = 81,084,515.39/8,870.92
  6. Step 6: Final answer
    x = 9,140.49

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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.