Home / 19,362.38-26,720.08-10,978.88

Finding the Fourth Proportional to 19,362.38, 26,720.08 and 10,978.88

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Solution

The fourth proportional to 19,362.38, 26,720.08 and 10,978.88 is: 15,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,362.38 : 26,720.08 = 10,978.88 : x
  2. Step 2: Convert to fraction form
    19,362.38/26,720.08 = 10,978.88/x
  3. Step 3: Cross multiply
    19,362.38x = 26,720.08 × 10,978.88
  4. Step 4: Simplify right side
    19,362.38x = 293,356,390.86
  5. Step 5: Solve for x
    x = 293,356,390.86/19,362.38
  6. Step 6: Final answer
    x = 15,150.85

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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.