Home / 19,310.31-26,648.70-10,812.36

Finding the Fourth Proportional to 19,310.31, 26,648.70 and 10,812.36

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Solution

The fourth proportional to 19,310.31, 26,648.70 and 10,812.36 is: 14,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.31 : 26,648.70 = 10,812.36 : x
  2. Step 2: Convert to fraction form
    19,310.31/26,648.70 = 10,812.36/x
  3. Step 3: Cross multiply
    19,310.31x = 26,648.70 × 10,812.36
  4. Step 4: Simplify right side
    19,310.31x = 288,135,337.93
  5. Step 5: Solve for x
    x = 288,135,337.93/19,310.31
  6. Step 6: Final answer
    x = 14,921.32

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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.