Home / 12,180.54-16,808.79-6,875.85

Finding the Fourth Proportional to 12,180.54, 16,808.79 and 6,875.85

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Solution

The fourth proportional to 12,180.54, 16,808.79 and 6,875.85 is: 9,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.54 : 16,808.79 = 6,875.85 : x
  2. Step 2: Convert to fraction form
    12,180.54/16,808.79 = 6,875.85/x
  3. Step 3: Cross multiply
    12,180.54x = 16,808.79 × 6,875.85
  4. Step 4: Simplify right side
    12,180.54x = 115,574,718.72
  5. Step 5: Solve for x
    x = 115,574,718.72/12,180.54
  6. Step 6: Final answer
    x = 9,488.47

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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.