Home / 18,089.90-27,139.50-6,993.70

Finding the Fourth Proportional to 18,089.90, 27,139.50 and 6,993.70

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Solution

The fourth proportional to 18,089.90, 27,139.50 and 6,993.70 is: 10,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.90 : 27,139.50 = 6,993.70 : x
  2. Step 2: Convert to fraction form
    18,089.90/27,139.50 = 6,993.70/x
  3. Step 3: Cross multiply
    18,089.90x = 27,139.50 × 6,993.70
  4. Step 4: Simplify right side
    18,089.90x = 189,805,521.15
  5. Step 5: Solve for x
    x = 189,805,521.15/18,089.90
  6. Step 6: Final answer
    x = 10,492.35

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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.