Home / 17,278.90-23,845.56-9,725.56

Finding the Fourth Proportional to 17,278.90, 23,845.56 and 9,725.56

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Solution

The fourth proportional to 17,278.90, 23,845.56 and 9,725.56 is: 13,421.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,278.90 : 23,845.56 = 9,725.56 : x
  2. Step 2: Convert to fraction form
    17,278.90/23,845.56 = 9,725.56/x
  3. Step 3: Cross multiply
    17,278.90x = 23,845.56 × 9,725.56
  4. Step 4: Simplify right side
    17,278.90x = 231,911,424.51
  5. Step 5: Solve for x
    x = 231,911,424.51/17,278.90
  6. Step 6: Final answer
    x = 13,421.65

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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.