Home / 15,012.36-20,716.85-8,298.11

Finding the Fourth Proportional to 15,012.36, 20,716.85 and 8,298.11

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Solution

The fourth proportional to 15,012.36, 20,716.85 and 8,298.11 is: 11,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.36 : 20,716.85 = 8,298.11 : x
  2. Step 2: Convert to fraction form
    15,012.36/20,716.85 = 8,298.11/x
  3. Step 3: Cross multiply
    15,012.36x = 20,716.85 × 8,298.11
  4. Step 4: Simplify right side
    15,012.36x = 171,910,555.08
  5. Step 5: Solve for x
    x = 171,910,555.08/15,012.36
  6. Step 6: Final answer
    x = 11,451.27

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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.