Home / 13,872.04-19,145.10-9,166.12

Finding the Fourth Proportional to 13,872.04, 19,145.10 and 9,166.12

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Solution

The fourth proportional to 13,872.04, 19,145.10 and 9,166.12 is: 12,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.04 : 19,145.10 = 9,166.12 : x
  2. Step 2: Convert to fraction form
    13,872.04/19,145.10 = 9,166.12/x
  3. Step 3: Cross multiply
    13,872.04x = 19,145.10 × 9,166.12
  4. Step 4: Simplify right side
    13,872.04x = 175,486,284.01
  5. Step 5: Solve for x
    x = 175,486,284.01/13,872.04
  6. Step 6: Final answer
    x = 12,650.36

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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.