Home / 19,151.46-28,719.33-7,309.55

Finding the Fourth Proportional to 19,151.46, 28,719.33 and 7,309.55

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Solution

The fourth proportional to 19,151.46, 28,719.33 and 7,309.55 is: 10,961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.46 : 28,719.33 = 7,309.55 : x
  2. Step 2: Convert to fraction form
    19,151.46/28,719.33 = 7,309.55/x
  3. Step 3: Cross multiply
    19,151.46x = 28,719.33 × 7,309.55
  4. Step 4: Simplify right side
    19,151.46x = 209,925,235.00
  5. Step 5: Solve for x
    x = 209,925,235.00/19,151.46
  6. Step 6: Final answer
    x = 10,961.32

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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.