Home / 18,860.71-28,294.52-6,211.19

Finding the Fourth Proportional to 18,860.71, 28,294.52 and 6,211.19

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Solution

The fourth proportional to 18,860.71, 28,294.52 and 6,211.19 is: 9,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.71 : 28,294.52 = 6,211.19 : x
  2. Step 2: Convert to fraction form
    18,860.71/28,294.52 = 6,211.19/x
  3. Step 3: Cross multiply
    18,860.71x = 28,294.52 × 6,211.19
  4. Step 4: Simplify right side
    18,860.71x = 175,742,639.68
  5. Step 5: Solve for x
    x = 175,742,639.68/18,860.71
  6. Step 6: Final answer
    x = 9,317.92

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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.