Home / 8,860.36-13,287.40-2,618.72

Finding the Fourth Proportional to 8,860.36, 13,287.40 and 2,618.72

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Solution

The fourth proportional to 8,860.36, 13,287.40 and 2,618.72 is: 3,927.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.36 : 13,287.40 = 2,618.72 : x
  2. Step 2: Convert to fraction form
    8,860.36/13,287.40 = 2,618.72/x
  3. Step 3: Cross multiply
    8,860.36x = 13,287.40 × 2,618.72
  4. Step 4: Simplify right side
    8,860.36x = 34,795,980.13
  5. Step 5: Solve for x
    x = 34,795,980.13/8,860.36
  6. Step 6: Final answer
    x = 3,927.15

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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.