Home / 19,211.55-28,818.20-7,206.57

Finding the Fourth Proportional to 19,211.55, 28,818.20 and 7,206.57

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Solution

The fourth proportional to 19,211.55, 28,818.20 and 7,206.57 is: 10,810.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.55 : 28,818.20 = 7,206.57 : x
  2. Step 2: Convert to fraction form
    19,211.55/28,818.20 = 7,206.57/x
  3. Step 3: Cross multiply
    19,211.55x = 28,818.20 × 7,206.57
  4. Step 4: Simplify right side
    19,211.55x = 207,680,272.01
  5. Step 5: Solve for x
    x = 207,680,272.01/19,211.55
  6. Step 6: Final answer
    x = 10,810.18

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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.