Home / 18,093.40-27,141.45-6,405.10

Finding the Fourth Proportional to 18,093.40, 27,141.45 and 6,405.10

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Solution

The fourth proportional to 18,093.40, 27,141.45 and 6,405.10 is: 9,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,093.40 : 27,141.45 = 6,405.10 : x
  2. Step 2: Convert to fraction form
    18,093.40/27,141.45 = 6,405.10/x
  3. Step 3: Cross multiply
    18,093.40x = 27,141.45 × 6,405.10
  4. Step 4: Simplify right side
    18,093.40x = 173,843,701.40
  5. Step 5: Solve for x
    x = 173,843,701.40/18,093.40
  6. Step 6: Final answer
    x = 9,608.13

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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.