Home / 19,155.07-26,425.87-11,698.75

Finding the Fourth Proportional to 19,155.07, 26,425.87 and 11,698.75

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Solution

The fourth proportional to 19,155.07, 26,425.87 and 11,698.75 is: 16,139.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.07 : 26,425.87 = 11,698.75 : x
  2. Step 2: Convert to fraction form
    19,155.07/26,425.87 = 11,698.75/x
  3. Step 3: Cross multiply
    19,155.07x = 26,425.87 × 11,698.75
  4. Step 4: Simplify right side
    19,155.07x = 309,149,646.66
  5. Step 5: Solve for x
    x = 309,149,646.66/19,155.07
  6. Step 6: Final answer
    x = 16,139.31

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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.