Home / 11,578.19-15,977.79-6,272.69

Finding the Fourth Proportional to 11,578.19, 15,977.79 and 6,272.69

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Solution

The fourth proportional to 11,578.19, 15,977.79 and 6,272.69 is: 8,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,578.19 : 15,977.79 = 6,272.69 : x
  2. Step 2: Convert to fraction form
    11,578.19/15,977.79 = 6,272.69/x
  3. Step 3: Cross multiply
    11,578.19x = 15,977.79 × 6,272.69
  4. Step 4: Simplify right side
    11,578.19x = 100,223,643.67
  5. Step 5: Solve for x
    x = 100,223,643.67/11,578.19
  6. Step 6: Final answer
    x = 8,656.25

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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.