Home / 8,419.91-11,618.96-4,643.24

Finding the Fourth Proportional to 8,419.91, 11,618.96 and 4,643.24

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Solution

The fourth proportional to 8,419.91, 11,618.96 and 4,643.24 is: 6,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.91 : 11,618.96 = 4,643.24 : x
  2. Step 2: Convert to fraction form
    8,419.91/11,618.96 = 4,643.24/x
  3. Step 3: Cross multiply
    8,419.91x = 11,618.96 × 4,643.24
  4. Step 4: Simplify right side
    8,419.91x = 53,949,538.52
  5. Step 5: Solve for x
    x = 53,949,538.52/8,419.91
  6. Step 6: Final answer
    x = 6,407.38

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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.