Home / 19,211.50-28,806.18-7,518.34

Finding the Fourth Proportional to 19,211.50, 28,806.18 and 7,518.34

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Solution

The fourth proportional to 19,211.50, 28,806.18 and 7,518.34 is: 11,273.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.50 : 28,806.18 = 7,518.34 : x
  2. Step 2: Convert to fraction form
    19,211.50/28,806.18 = 7,518.34/x
  3. Step 3: Cross multiply
    19,211.50x = 28,806.18 × 7,518.34
  4. Step 4: Simplify right side
    19,211.50x = 216,574,655.34
  5. Step 5: Solve for x
    x = 216,574,655.34/19,211.50
  6. Step 6: Final answer
    x = 11,273.18

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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.