Home / 18,852.87-28,280.68-6,368.75

Finding the Fourth Proportional to 18,852.87, 28,280.68 and 6,368.75

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Solution

The fourth proportional to 18,852.87, 28,280.68 and 6,368.75 is: 9,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.87 : 28,280.68 = 6,368.75 : x
  2. Step 2: Convert to fraction form
    18,852.87/28,280.68 = 6,368.75/x
  3. Step 3: Cross multiply
    18,852.87x = 28,280.68 × 6,368.75
  4. Step 4: Simplify right side
    18,852.87x = 180,112,580.75
  5. Step 5: Solve for x
    x = 180,112,580.75/18,852.87
  6. Step 6: Final answer
    x = 9,553.59

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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.