Home / 19,110.80-26,385.39-12,415.50

Finding the Fourth Proportional to 19,110.80, 26,385.39 and 12,415.50

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Solution

The fourth proportional to 19,110.80, 26,385.39 and 12,415.50 is: 17,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.80 : 26,385.39 = 12,415.50 : x
  2. Step 2: Convert to fraction form
    19,110.80/26,385.39 = 12,415.50/x
  3. Step 3: Cross multiply
    19,110.80x = 26,385.39 × 12,415.50
  4. Step 4: Simplify right side
    19,110.80x = 327,587,844.47
  5. Step 5: Solve for x
    x = 327,587,844.47/19,110.80
  6. Step 6: Final answer
    x = 17,141.51

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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.