Home / 8,419.08-11,619.18-5,775.24

Finding the Fourth Proportional to 8,419.08, 11,619.18 and 5,775.24

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Solution

The fourth proportional to 8,419.08, 11,619.18 and 5,775.24 is: 7,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.08 : 11,619.18 = 5,775.24 : x
  2. Step 2: Convert to fraction form
    8,419.08/11,619.18 = 5,775.24/x
  3. Step 3: Cross multiply
    8,419.08x = 11,619.18 × 5,775.24
  4. Step 4: Simplify right side
    8,419.08x = 67,103,553.10
  5. Step 5: Solve for x
    x = 67,103,553.10/8,419.08
  6. Step 6: Final answer
    x = 7,970.41

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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.