Home / 12,866.21-17,754.77-7,276.13

Finding the Fourth Proportional to 12,866.21, 17,754.77 and 7,276.13

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Solution

The fourth proportional to 12,866.21, 17,754.77 and 7,276.13 is: 10,040.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866.21 : 17,754.77 = 7,276.13 : x
  2. Step 2: Convert to fraction form
    12,866.21/17,754.77 = 7,276.13/x
  3. Step 3: Cross multiply
    12,866.21x = 17,754.77 × 7,276.13
  4. Step 4: Simplify right side
    12,866.21x = 129,185,978.26
  5. Step 5: Solve for x
    x = 129,185,978.26/12,866.21
  6. Step 6: Final answer
    x = 10,040.72

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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.