Home / 13,966.20-19,280.16-10,972.44

Finding the Fourth Proportional to 13,966.20, 19,280.16 and 10,972.44

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Solution

The fourth proportional to 13,966.20, 19,280.16 and 10,972.44 is: 15,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,966.20 : 19,280.16 = 10,972.44 : x
  2. Step 2: Convert to fraction form
    13,966.20/19,280.16 = 10,972.44/x
  3. Step 3: Cross multiply
    13,966.20x = 19,280.16 × 10,972.44
  4. Step 4: Simplify right side
    13,966.20x = 211,550,398.79
  5. Step 5: Solve for x
    x = 211,550,398.79/13,966.20
  6. Step 6: Final answer
    x = 15,147.31

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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.