Home / 13,617.74-18,791.46-7,648.25

Finding the Fourth Proportional to 13,617.74, 18,791.46 and 7,648.25

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Solution

The fourth proportional to 13,617.74, 18,791.46 and 7,648.25 is: 10,554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.74 : 18,791.46 = 7,648.25 : x
  2. Step 2: Convert to fraction form
    13,617.74/18,791.46 = 7,648.25/x
  3. Step 3: Cross multiply
    13,617.74x = 18,791.46 × 7,648.25
  4. Step 4: Simplify right side
    13,617.74x = 143,721,689.99
  5. Step 5: Solve for x
    x = 143,721,689.99/13,617.74
  6. Step 6: Final answer
    x = 10,554.00

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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.