Home / 12,098.87-18,219.37-10,557.27

Finding the Fourth Proportional to 12,098.87, 18,219.37 and 10,557.27

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Solution

The fourth proportional to 12,098.87, 18,219.37 and 10,557.27 is: 15,897.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.87 : 18,219.37 = 10,557.27 : x
  2. Step 2: Convert to fraction form
    12,098.87/18,219.37 = 10,557.27/x
  3. Step 3: Cross multiply
    12,098.87x = 18,219.37 × 10,557.27
  4. Step 4: Simplify right side
    12,098.87x = 192,346,743.62
  5. Step 5: Solve for x
    x = 192,346,743.62/12,098.87
  6. Step 6: Final answer
    x = 15,897.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.