Home / 12,612.16-18,916.08-3,376

Finding the Fourth Proportional to 12,612.16, 18,916.08 and 3,376

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Solution

The fourth proportional to 12,612.16, 18,916.08 and 3,376 is: 5,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.16 : 18,916.08 = 3,376 : x
  2. Step 2: Convert to fraction form
    12,612.16/18,916.08 = 3,376/x
  3. Step 3: Cross multiply
    12,612.16x = 18,916.08 × 3,376
  4. Step 4: Simplify right side
    12,612.16x = 63,860,686.08
  5. Step 5: Solve for x
    x = 63,860,686.08/12,612.16
  6. Step 6: Final answer
    x = 5,063.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.