Home / 19,407.20-26,790.35-12,243.56

Finding the Fourth Proportional to 19,407.20, 26,790.35 and 12,243.56

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Solution

The fourth proportional to 19,407.20, 26,790.35 and 12,243.56 is: 16,901.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.20 : 26,790.35 = 12,243.56 : x
  2. Step 2: Convert to fraction form
    19,407.20/26,790.35 = 12,243.56/x
  3. Step 3: Cross multiply
    19,407.20x = 26,790.35 × 12,243.56
  4. Step 4: Simplify right side
    19,407.20x = 328,009,062.48
  5. Step 5: Solve for x
    x = 328,009,062.48/19,407.20
  6. Step 6: Final answer
    x = 16,901.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.