Home / 19,555.13-26,985.72-11,057.11

Finding the Fourth Proportional to 19,555.13, 26,985.72 and 11,057.11

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Solution

The fourth proportional to 19,555.13, 26,985.72 and 11,057.11 is: 15,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.13 : 26,985.72 = 11,057.11 : x
  2. Step 2: Convert to fraction form
    19,555.13/26,985.72 = 11,057.11/x
  3. Step 3: Cross multiply
    19,555.13x = 26,985.72 × 11,057.11
  4. Step 4: Simplify right side
    19,555.13x = 298,384,074.47
  5. Step 5: Solve for x
    x = 298,384,074.47/19,555.13
  6. Step 6: Final answer
    x = 15,258.61

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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.