Home / 13,192.78-18,206.04-7,224.84

Finding the Fourth Proportional to 13,192.78, 18,206.04 and 7,224.84

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Solution

The fourth proportional to 13,192.78, 18,206.04 and 7,224.84 is: 9,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.78 : 18,206.04 = 7,224.84 : x
  2. Step 2: Convert to fraction form
    13,192.78/18,206.04 = 7,224.84/x
  3. Step 3: Cross multiply
    13,192.78x = 18,206.04 × 7,224.84
  4. Step 4: Simplify right side
    13,192.78x = 131,535,726.03
  5. Step 5: Solve for x
    x = 131,535,726.03/13,192.78
  6. Step 6: Final answer
    x = 9,970.28

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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.