Home / 18,412.90-27,620.31-5,267.26

Finding the Fourth Proportional to 18,412.90, 27,620.31 and 5,267.26

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Solution

The fourth proportional to 18,412.90, 27,620.31 and 5,267.26 is: 7,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412.90 : 27,620.31 = 5,267.26 : x
  2. Step 2: Convert to fraction form
    18,412.90/27,620.31 = 5,267.26/x
  3. Step 3: Cross multiply
    18,412.90x = 27,620.31 × 5,267.26
  4. Step 4: Simplify right side
    18,412.90x = 145,483,354.05
  5. Step 5: Solve for x
    x = 145,483,354.05/18,412.90
  6. Step 6: Final answer
    x = 7,901.16

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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.