Home / 12,177.34-16,802.64-6,872.04

Finding the Fourth Proportional to 12,177.34, 16,802.64 and 6,872.04

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Solution

The fourth proportional to 12,177.34, 16,802.64 and 6,872.04 is: 9,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.34 : 16,802.64 = 6,872.04 : x
  2. Step 2: Convert to fraction form
    12,177.34/16,802.64 = 6,872.04/x
  3. Step 3: Cross multiply
    12,177.34x = 16,802.64 × 6,872.04
  4. Step 4: Simplify right side
    12,177.34x = 115,468,414.19
  5. Step 5: Solve for x
    x = 115,468,414.19/12,177.34
  6. Step 6: Final answer
    x = 9,482.24

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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.