Home / 9,005.09-13,511.69-5,717.30

Finding the Fourth Proportional to 9,005.09, 13,511.69 and 5,717.30

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Solution

The fourth proportional to 9,005.09, 13,511.69 and 5,717.30 is: 8,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.09 : 13,511.69 = 5,717.30 : x
  2. Step 2: Convert to fraction form
    9,005.09/13,511.69 = 5,717.30/x
  3. Step 3: Cross multiply
    9,005.09x = 13,511.69 × 5,717.30
  4. Step 4: Simplify right side
    9,005.09x = 77,250,385.24
  5. Step 5: Solve for x
    x = 77,250,385.24/9,005.09
  6. Step 6: Final answer
    x = 8,578.52

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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.