Home / 12,525.68-17,291.40-7,816.88

Finding the Fourth Proportional to 12,525.68, 17,291.40 and 7,816.88

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Solution

The fourth proportional to 12,525.68, 17,291.40 and 7,816.88 is: 10,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.68 : 17,291.40 = 7,816.88 : x
  2. Step 2: Convert to fraction form
    12,525.68/17,291.40 = 7,816.88/x
  3. Step 3: Cross multiply
    12,525.68x = 17,291.40 × 7,816.88
  4. Step 4: Simplify right side
    12,525.68x = 135,164,798.83
  5. Step 5: Solve for x
    x = 135,164,798.83/12,525.68
  6. Step 6: Final answer
    x = 10,791.01

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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.