Home / 19,146.47-28,719.70-5,819.57

Finding the Fourth Proportional to 19,146.47, 28,719.70 and 5,819.57

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Solution

The fourth proportional to 19,146.47, 28,719.70 and 5,819.57 is: 8,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.47 : 28,719.70 = 5,819.57 : x
  2. Step 2: Convert to fraction form
    19,146.47/28,719.70 = 5,819.57/x
  3. Step 3: Cross multiply
    19,146.47x = 28,719.70 × 5,819.57
  4. Step 4: Simplify right side
    19,146.47x = 167,136,304.53
  5. Step 5: Solve for x
    x = 167,136,304.53/19,146.47
  6. Step 6: Final answer
    x = 8,729.35

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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.