Home / 19,362.28-26,719.95-10,978.78

Finding the Fourth Proportional to 19,362.28, 26,719.95 and 10,978.78

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Solution

The fourth proportional to 19,362.28, 26,719.95 and 10,978.78 is: 15,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,362.28 : 26,719.95 = 10,978.78 : x
  2. Step 2: Convert to fraction form
    19,362.28/26,719.95 = 10,978.78/x
  3. Step 3: Cross multiply
    19,362.28x = 26,719.95 × 10,978.78
  4. Step 4: Simplify right side
    19,362.28x = 293,352,452.66
  5. Step 5: Solve for x
    x = 293,352,452.66/19,362.28
  6. Step 6: Final answer
    x = 15,150.72

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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.