Home / 19,813.86-27,338.85-11,425.50

Finding the Fourth Proportional to 19,813.86, 27,338.85 and 11,425.50

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Solution

The fourth proportional to 19,813.86, 27,338.85 and 11,425.50 is: 15,764.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.86 : 27,338.85 = 11,425.50 : x
  2. Step 2: Convert to fraction form
    19,813.86/27,338.85 = 11,425.50/x
  3. Step 3: Cross multiply
    19,813.86x = 27,338.85 × 11,425.50
  4. Step 4: Simplify right side
    19,813.86x = 312,360,030.68
  5. Step 5: Solve for x
    x = 312,360,030.68/19,813.86
  6. Step 6: Final answer
    x = 15,764.72

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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.