Home / 19,493.40-26,901.18-11,109.72

Finding the Fourth Proportional to 19,493.40, 26,901.18 and 11,109.72

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Solution

The fourth proportional to 19,493.40, 26,901.18 and 11,109.72 is: 15,331.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,493.40 : 26,901.18 = 11,109.72 : x
  2. Step 2: Convert to fraction form
    19,493.40/26,901.18 = 11,109.72/x
  3. Step 3: Cross multiply
    19,493.40x = 26,901.18 × 11,109.72
  4. Step 4: Simplify right side
    19,493.40x = 298,864,577.47
  5. Step 5: Solve for x
    x = 298,864,577.47/19,493.40
  6. Step 6: Final answer
    x = 15,331.58

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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.