Home / 19,191.42-28,795.47-6,720.39

Finding the Fourth Proportional to 19,191.42, 28,795.47 and 6,720.39

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Solution

The fourth proportional to 19,191.42, 28,795.47 and 6,720.39 is: 10,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.42 : 28,795.47 = 6,720.39 : x
  2. Step 2: Convert to fraction form
    19,191.42/28,795.47 = 6,720.39/x
  3. Step 3: Cross multiply
    19,191.42x = 28,795.47 × 6,720.39
  4. Step 4: Simplify right side
    19,191.42x = 193,516,788.63
  5. Step 5: Solve for x
    x = 193,516,788.63/19,191.42
  6. Step 6: Final answer
    x = 10,083.51

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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.