Home / 13,122.17-19,661.38-9,219.59

Finding the Fourth Proportional to 13,122.17, 19,661.38 and 9,219.59

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Solution

The fourth proportional to 13,122.17, 19,661.38 and 9,219.59 is: 13,814.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.17 : 19,661.38 = 9,219.59 : x
  2. Step 2: Convert to fraction form
    13,122.17/19,661.38 = 9,219.59/x
  3. Step 3: Cross multiply
    13,122.17x = 19,661.38 × 9,219.59
  4. Step 4: Simplify right side
    13,122.17x = 181,269,866.67
  5. Step 5: Solve for x
    x = 181,269,866.67/13,122.17
  6. Step 6: Final answer
    x = 13,814.02

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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.