Home / 18,135.59-27,186.96-6,446.08

Finding the Fourth Proportional to 18,135.59, 27,186.96 and 6,446.08

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Solution

The fourth proportional to 18,135.59, 27,186.96 and 6,446.08 is: 9,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.59 : 27,186.96 = 6,446.08 : x
  2. Step 2: Convert to fraction form
    18,135.59/27,186.96 = 6,446.08/x
  3. Step 3: Cross multiply
    18,135.59x = 27,186.96 × 6,446.08
  4. Step 4: Simplify right side
    18,135.59x = 175,249,319.12
  5. Step 5: Solve for x
    x = 175,249,319.12/18,135.59
  6. Step 6: Final answer
    x = 9,663.28

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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.