Home / 12,686.02-19,027.14-3,326.20

Finding the Fourth Proportional to 12,686.02, 19,027.14 and 3,326.20

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Solution

The fourth proportional to 12,686.02, 19,027.14 and 3,326.20 is: 4,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.02 : 19,027.14 = 3,326.20 : x
  2. Step 2: Convert to fraction form
    12,686.02/19,027.14 = 3,326.20/x
  3. Step 3: Cross multiply
    12,686.02x = 19,027.14 × 3,326.20
  4. Step 4: Simplify right side
    12,686.02x = 63,288,073.07
  5. Step 5: Solve for x
    x = 63,288,073.07/12,686.02
  6. Step 6: Final answer
    x = 4,988.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.