Home / 19,202.67-28,781.37-8,660.35

Finding the Fourth Proportional to 19,202.67, 28,781.37 and 8,660.35

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Solution

The fourth proportional to 19,202.67, 28,781.37 and 8,660.35 is: 12,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,202.67 : 28,781.37 = 8,660.35 : x
  2. Step 2: Convert to fraction form
    19,202.67/28,781.37 = 8,660.35/x
  3. Step 3: Cross multiply
    19,202.67x = 28,781.37 × 8,660.35
  4. Step 4: Simplify right side
    19,202.67x = 249,256,737.68
  5. Step 5: Solve for x
    x = 249,256,737.68/19,202.67
  6. Step 6: Final answer
    x = 12,980.32

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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.