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Finding the Fourth Proportional to 12,230.80, 16,879.08 and 6,925.50

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Solution

The fourth proportional to 12,230.80, 16,879.08 and 6,925.50 is: 9,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.80 : 16,879.08 = 6,925.50 : x
  2. Step 2: Convert to fraction form
    12,230.80/16,879.08 = 6,925.50/x
  3. Step 3: Cross multiply
    12,230.80x = 16,879.08 × 6,925.50
  4. Step 4: Simplify right side
    12,230.80x = 116,896,094.51
  5. Step 5: Solve for x
    x = 116,896,094.51/12,230.80
  6. Step 6: Final answer
    x = 9,557.52

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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.