Home / 18,860.70-28,294.52-6,211.18

Finding the Fourth Proportional to 18,860.70, 28,294.52 and 6,211.18

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Solution

The fourth proportional to 18,860.70, 28,294.52 and 6,211.18 is: 9,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.70 : 28,294.52 = 6,211.18 : x
  2. Step 2: Convert to fraction form
    18,860.70/28,294.52 = 6,211.18/x
  3. Step 3: Cross multiply
    18,860.70x = 28,294.52 × 6,211.18
  4. Step 4: Simplify right side
    18,860.70x = 175,742,361.05
  5. Step 5: Solve for x
    x = 175,742,361.05/18,860.70
  6. Step 6: Final answer
    x = 9,317.91

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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.