Home / 13,107.55-19,673.67-8,728.06

Finding the Fourth Proportional to 13,107.55, 19,673.67 and 8,728.06

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Solution

The fourth proportional to 13,107.55, 19,673.67 and 8,728.06 is: 13,100.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.55 : 19,673.67 = 8,728.06 : x
  2. Step 2: Convert to fraction form
    13,107.55/19,673.67 = 8,728.06/x
  3. Step 3: Cross multiply
    13,107.55x = 19,673.67 × 8,728.06
  4. Step 4: Simplify right side
    13,107.55x = 171,712,972.18
  5. Step 5: Solve for x
    x = 171,712,972.18/13,107.55
  6. Step 6: Final answer
    x = 13,100.31

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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.