Home / 19,363.46-26,720.62-10,978.34

Finding the Fourth Proportional to 19,363.46, 26,720.62 and 10,978.34

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Solution

The fourth proportional to 19,363.46, 26,720.62 and 10,978.34 is: 15,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,363.46 : 26,720.62 = 10,978.34 : x
  2. Step 2: Convert to fraction form
    19,363.46/26,720.62 = 10,978.34/x
  3. Step 3: Cross multiply
    19,363.46x = 26,720.62 × 10,978.34
  4. Step 4: Simplify right side
    19,363.46x = 293,347,890.32
  5. Step 5: Solve for x
    x = 293,347,890.32/19,363.46
  6. Step 6: Final answer
    x = 15,149.56

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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.