Home / 13,122.06-18,107.73-7,533.06

Finding the Fourth Proportional to 13,122.06, 18,107.73 and 7,533.06

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Solution

The fourth proportional to 13,122.06, 18,107.73 and 7,533.06 is: 10,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.06 : 18,107.73 = 7,533.06 : x
  2. Step 2: Convert to fraction form
    13,122.06/18,107.73 = 7,533.06/x
  3. Step 3: Cross multiply
    13,122.06x = 18,107.73 × 7,533.06
  4. Step 4: Simplify right side
    13,122.06x = 136,406,616.55
  5. Step 5: Solve for x
    x = 136,406,616.55/13,122.06
  6. Step 6: Final answer
    x = 10,395.21

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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.