Home / 19,188.05-28,788.95-6,711.50

Finding the Fourth Proportional to 19,188.05, 28,788.95 and 6,711.50

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Solution

The fourth proportional to 19,188.05, 28,788.95 and 6,711.50 is: 10,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.05 : 28,788.95 = 6,711.50 : x
  2. Step 2: Convert to fraction form
    19,188.05/28,788.95 = 6,711.50/x
  3. Step 3: Cross multiply
    19,188.05x = 28,788.95 × 6,711.50
  4. Step 4: Simplify right side
    19,188.05x = 193,217,126.68
  5. Step 5: Solve for x
    x = 193,217,126.68/19,188.05
  6. Step 6: Final answer
    x = 10,069.66

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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.