Home / 12,694.08-19,042.56-3,931.20

Finding the Fourth Proportional to 12,694.08, 19,042.56 and 3,931.20

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Solution

The fourth proportional to 12,694.08, 19,042.56 and 3,931.20 is: 5,897.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.08 : 19,042.56 = 3,931.20 : x
  2. Step 2: Convert to fraction form
    12,694.08/19,042.56 = 3,931.20/x
  3. Step 3: Cross multiply
    12,694.08x = 19,042.56 × 3,931.20
  4. Step 4: Simplify right side
    12,694.08x = 74,860,111.87
  5. Step 5: Solve for x
    x = 74,860,111.87/12,694.08
  6. Step 6: Final answer
    x = 5,897.25

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1.5x scale

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.