Home / 15,342.05-21,174.05-11,374.47

Finding the Fourth Proportional to 15,342.05, 21,174.05 and 11,374.47

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Solution

The fourth proportional to 15,342.05, 21,174.05 and 11,374.47 is: 15,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.05 : 21,174.05 = 11,374.47 : x
  2. Step 2: Convert to fraction form
    15,342.05/21,174.05 = 11,374.47/x
  3. Step 3: Cross multiply
    15,342.05x = 21,174.05 × 11,374.47
  4. Step 4: Simplify right side
    15,342.05x = 240,843,624.94
  5. Step 5: Solve for x
    x = 240,843,624.94/15,342.05
  6. Step 6: Final answer
    x = 15,698.27

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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.