Home / 19,089.28-26,340.32-10,912.30

Finding the Fourth Proportional to 19,089.28, 26,340.32 and 10,912.30

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Solution

The fourth proportional to 19,089.28, 26,340.32 and 10,912.30 is: 15,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.28 : 26,340.32 = 10,912.30 : x
  2. Step 2: Convert to fraction form
    19,089.28/26,340.32 = 10,912.30/x
  3. Step 3: Cross multiply
    19,089.28x = 26,340.32 × 10,912.30
  4. Step 4: Simplify right side
    19,089.28x = 287,433,473.94
  5. Step 5: Solve for x
    x = 287,433,473.94/19,089.28
  6. Step 6: Final answer
    x = 15,057.32

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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.