Home / 8,858.69-13,288.02-2,618.78

Finding the Fourth Proportional to 8,858.69, 13,288.02 and 2,618.78

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Solution

The fourth proportional to 8,858.69, 13,288.02 and 2,618.78 is: 3,928.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.69 : 13,288.02 = 2,618.78 : x
  2. Step 2: Convert to fraction form
    8,858.69/13,288.02 = 2,618.78/x
  3. Step 3: Cross multiply
    8,858.69x = 13,288.02 × 2,618.78
  4. Step 4: Simplify right side
    8,858.69x = 34,798,401.02
  5. Step 5: Solve for x
    x = 34,798,401.02/8,858.69
  6. Step 6: Final answer
    x = 3,928.17

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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.