Home / 19,377.57-26,741.93-11,420.13

Finding the Fourth Proportional to 19,377.57, 26,741.93 and 11,420.13

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Solution

The fourth proportional to 19,377.57, 26,741.93 and 11,420.13 is: 15,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,377.57 : 26,741.93 = 11,420.13 : x
  2. Step 2: Convert to fraction form
    19,377.57/26,741.93 = 11,420.13/x
  3. Step 3: Cross multiply
    19,377.57x = 26,741.93 × 11,420.13
  4. Step 4: Simplify right side
    19,377.57x = 305,396,317.05
  5. Step 5: Solve for x
    x = 305,396,317.05/19,377.57
  6. Step 6: Final answer
    x = 15,760.30

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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.