Home / 13,665.93-18,851.13-8,628.36

Finding the Fourth Proportional to 13,665.93, 18,851.13 and 8,628.36

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Solution

The fourth proportional to 13,665.93, 18,851.13 and 8,628.36 is: 11,902.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.93 : 18,851.13 = 8,628.36 : x
  2. Step 2: Convert to fraction form
    13,665.93/18,851.13 = 8,628.36/x
  3. Step 3: Cross multiply
    13,665.93x = 18,851.13 × 8,628.36
  4. Step 4: Simplify right side
    13,665.93x = 162,654,336.05
  5. Step 5: Solve for x
    x = 162,654,336.05/13,665.93
  6. Step 6: Final answer
    x = 11,902.18

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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.