Home / 12,740.10-17,585.01-7,704.33

Finding the Fourth Proportional to 12,740.10, 17,585.01 and 7,704.33

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Solution

The fourth proportional to 12,740.10, 17,585.01 and 7,704.33 is: 10,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.10 : 17,585.01 = 7,704.33 : x
  2. Step 2: Convert to fraction form
    12,740.10/17,585.01 = 7,704.33/x
  3. Step 3: Cross multiply
    12,740.10x = 17,585.01 × 7,704.33
  4. Step 4: Simplify right side
    12,740.10x = 135,480,720.09
  5. Step 5: Solve for x
    x = 135,480,720.09/12,740.10
  6. Step 6: Final answer
    x = 10,634.20

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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.