Home / 13,535.05-18,678.44-7,566.97

Finding the Fourth Proportional to 13,535.05, 18,678.44 and 7,566.97

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Solution

The fourth proportional to 13,535.05, 18,678.44 and 7,566.97 is: 10,442.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.05 : 18,678.44 = 7,566.97 : x
  2. Step 2: Convert to fraction form
    13,535.05/18,678.44 = 7,566.97/x
  3. Step 3: Cross multiply
    13,535.05x = 18,678.44 × 7,566.97
  4. Step 4: Simplify right side
    13,535.05x = 141,339,195.13
  5. Step 5: Solve for x
    x = 141,339,195.13/13,535.05
  6. Step 6: Final answer
    x = 10,442.46

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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.