Home / 12,880.08-19,305.36-5,940

Finding the Fourth Proportional to 12,880.08, 19,305.36 and 5,940

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Solution

The fourth proportional to 12,880.08, 19,305.36 and 5,940 is: 8,903.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.08 : 19,305.36 = 5,940 : x
  2. Step 2: Convert to fraction form
    12,880.08/19,305.36 = 5,940/x
  3. Step 3: Cross multiply
    12,880.08x = 19,305.36 × 5,940
  4. Step 4: Simplify right side
    12,880.08x = 114,673,838.40
  5. Step 5: Solve for x
    x = 114,673,838.40/12,880.08
  6. Step 6: Final answer
    x = 8,903.19

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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.