Home / 15,033.47-20,745.87-8,319.09

Finding the Fourth Proportional to 15,033.47, 20,745.87 and 8,319.09

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Solution

The fourth proportional to 15,033.47, 20,745.87 and 8,319.09 is: 11,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.47 : 20,745.87 = 8,319.09 : x
  2. Step 2: Convert to fraction form
    15,033.47/20,745.87 = 8,319.09/x
  3. Step 3: Cross multiply
    15,033.47x = 20,745.87 × 8,319.09
  4. Step 4: Simplify right side
    15,033.47x = 172,586,718.19
  5. Step 5: Solve for x
    x = 172,586,718.19/15,033.47
  6. Step 6: Final answer
    x = 11,480.17

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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.