Home / 18,551.70-27,828.79-7,458.35

Finding the Fourth Proportional to 18,551.70, 27,828.79 and 7,458.35

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Solution

The fourth proportional to 18,551.70, 27,828.79 and 7,458.35 is: 11,188.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.70 : 27,828.79 = 7,458.35 : x
  2. Step 2: Convert to fraction form
    18,551.70/27,828.79 = 7,458.35/x
  3. Step 3: Cross multiply
    18,551.70x = 27,828.79 × 7,458.35
  4. Step 4: Simplify right side
    18,551.70x = 207,556,698.11
  5. Step 5: Solve for x
    x = 207,556,698.11/18,551.70
  6. Step 6: Final answer
    x = 11,188.02

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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.