Home / 19,148.28-26,420.80-11,188.96

Finding the Fourth Proportional to 19,148.28, 26,420.80 and 11,188.96

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Solution

The fourth proportional to 19,148.28, 26,420.80 and 11,188.96 is: 15,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.28 : 26,420.80 = 11,188.96 : x
  2. Step 2: Convert to fraction form
    19,148.28/26,420.80 = 11,188.96/x
  3. Step 3: Cross multiply
    19,148.28x = 26,420.80 × 11,188.96
  4. Step 4: Simplify right side
    19,148.28x = 295,621,274.37
  5. Step 5: Solve for x
    x = 295,621,274.37/19,148.28
  6. Step 6: Final answer
    x = 15,438.53

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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.