Home / 12,525.12-17,287.79-7,223.13

Finding the Fourth Proportional to 12,525.12, 17,287.79 and 7,223.13

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Solution

The fourth proportional to 12,525.12, 17,287.79 and 7,223.13 is: 9,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.12 : 17,287.79 = 7,223.13 : x
  2. Step 2: Convert to fraction form
    12,525.12/17,287.79 = 7,223.13/x
  3. Step 3: Cross multiply
    12,525.12x = 17,287.79 × 7,223.13
  4. Step 4: Simplify right side
    12,525.12x = 124,871,918.47
  5. Step 5: Solve for x
    x = 124,871,918.47/12,525.12
  6. Step 6: Final answer
    x = 9,969.72

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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.