Home / 12,550.70-17,320.22-7,515.14

Finding the Fourth Proportional to 12,550.70, 17,320.22 and 7,515.14

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Solution

The fourth proportional to 12,550.70, 17,320.22 and 7,515.14 is: 10,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.70 : 17,320.22 = 7,515.14 : x
  2. Step 2: Convert to fraction form
    12,550.70/17,320.22 = 7,515.14/x
  3. Step 3: Cross multiply
    12,550.70x = 17,320.22 × 7,515.14
  4. Step 4: Simplify right side
    12,550.70x = 130,163,878.13
  5. Step 5: Solve for x
    x = 130,163,878.13/12,550.70
  6. Step 6: Final answer
    x = 10,371.05

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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.