Home / 19,378.76-26,743.19-10,881.55

Finding the Fourth Proportional to 19,378.76, 26,743.19 and 10,881.55

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Solution

The fourth proportional to 19,378.76, 26,743.19 and 10,881.55 is: 15,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.76 : 26,743.19 = 10,881.55 : x
  2. Step 2: Convert to fraction form
    19,378.76/26,743.19 = 10,881.55/x
  3. Step 3: Cross multiply
    19,378.76x = 26,743.19 × 10,881.55
  4. Step 4: Simplify right side
    19,378.76x = 291,007,237.88
  5. Step 5: Solve for x
    x = 291,007,237.88/19,378.76
  6. Step 6: Final answer
    x = 15,016.82

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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.