Home / 19,918.68-29,874.57-7,437.39

Finding the Fourth Proportional to 19,918.68, 29,874.57 and 7,437.39

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Solution

The fourth proportional to 19,918.68, 29,874.57 and 7,437.39 is: 11,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.68 : 29,874.57 = 7,437.39 : x
  2. Step 2: Convert to fraction form
    19,918.68/29,874.57 = 7,437.39/x
  3. Step 3: Cross multiply
    19,918.68x = 29,874.57 × 7,437.39
  4. Step 4: Simplify right side
    19,918.68x = 222,188,828.17
  5. Step 5: Solve for x
    x = 222,188,828.17/19,918.68
  6. Step 6: Final answer
    x = 11,154.80

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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.