Home / 12,921.52-19,366.02-6,998.18

Finding the Fourth Proportional to 12,921.52, 19,366.02 and 6,998.18

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Solution

The fourth proportional to 12,921.52, 19,366.02 and 6,998.18 is: 10,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.52 : 19,366.02 = 6,998.18 : x
  2. Step 2: Convert to fraction form
    12,921.52/19,366.02 = 6,998.18/x
  3. Step 3: Cross multiply
    12,921.52x = 19,366.02 × 6,998.18
  4. Step 4: Simplify right side
    12,921.52x = 135,526,893.84
  5. Step 5: Solve for x
    x = 135,526,893.84/12,921.52
  6. Step 6: Final answer
    x = 10,488.46

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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.