Home / 18,281.97-27,417.36-7,751.79

Finding the Fourth Proportional to 18,281.97, 27,417.36 and 7,751.79

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Solution

The fourth proportional to 18,281.97, 27,417.36 and 7,751.79 is: 11,625.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.97 : 27,417.36 = 7,751.79 : x
  2. Step 2: Convert to fraction form
    18,281.97/27,417.36 = 7,751.79/x
  3. Step 3: Cross multiply
    18,281.97x = 27,417.36 × 7,751.79
  4. Step 4: Simplify right side
    18,281.97x = 212,533,617.07
  5. Step 5: Solve for x
    x = 212,533,617.07/18,281.97
  6. Step 6: Final answer
    x = 11,625.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.