Home / 12,228.05-16,874.78-7,192.47

Finding the Fourth Proportional to 12,228.05, 16,874.78 and 7,192.47

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Solution

The fourth proportional to 12,228.05, 16,874.78 and 7,192.47 is: 9,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.05 : 16,874.78 = 7,192.47 : x
  2. Step 2: Convert to fraction form
    12,228.05/16,874.78 = 7,192.47/x
  3. Step 3: Cross multiply
    12,228.05x = 16,874.78 × 7,192.47
  4. Step 4: Simplify right side
    12,228.05x = 121,371,312.94
  5. Step 5: Solve for x
    x = 121,371,312.94/12,228.05
  6. Step 6: Final answer
    x = 9,925.65

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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.