Home / 12,699.36-19,047.72-3,934.35

Finding the Fourth Proportional to 12,699.36, 19,047.72 and 3,934.35

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Solution

The fourth proportional to 12,699.36, 19,047.72 and 3,934.35 is: 5,901.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.36 : 19,047.72 = 3,934.35 : x
  2. Step 2: Convert to fraction form
    12,699.36/19,047.72 = 3,934.35/x
  3. Step 3: Cross multiply
    12,699.36x = 19,047.72 × 3,934.35
  4. Step 4: Simplify right side
    12,699.36x = 74,940,411.94
  5. Step 5: Solve for x
    x = 74,940,411.94/12,699.36
  6. Step 6: Final answer
    x = 5,901.12

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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.