Home / 19,375.52-26,740.12-11,420.32

Finding the Fourth Proportional to 19,375.52, 26,740.12 and 11,420.32

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Solution

The fourth proportional to 19,375.52, 26,740.12 and 11,420.32 is: 15,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.52 : 26,740.12 = 11,420.32 : x
  2. Step 2: Convert to fraction form
    19,375.52/26,740.12 = 11,420.32/x
  3. Step 3: Cross multiply
    19,375.52x = 26,740.12 × 11,420.32
  4. Step 4: Simplify right side
    19,375.52x = 305,380,727.24
  5. Step 5: Solve for x
    x = 305,380,727.24/19,375.52
  6. Step 6: Final answer
    x = 15,761.16

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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.