Home / 19,269.19-28,903.79-5,418.19

Finding the Fourth Proportional to 19,269.19, 28,903.79 and 5,418.19

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Solution

The fourth proportional to 19,269.19, 28,903.79 and 5,418.19 is: 8,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,269.19 : 28,903.79 = 5,418.19 : x
  2. Step 2: Convert to fraction form
    19,269.19/28,903.79 = 5,418.19/x
  3. Step 3: Cross multiply
    19,269.19x = 28,903.79 × 5,418.19
  4. Step 4: Simplify right side
    19,269.19x = 156,606,126.59
  5. Step 5: Solve for x
    x = 156,606,126.59/19,269.19
  6. Step 6: Final answer
    x = 8,127.28

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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.