Home / 13,330.78-19,996.07-3,470.02

Finding the Fourth Proportional to 13,330.78, 19,996.07 and 3,470.02

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Solution

The fourth proportional to 13,330.78, 19,996.07 and 3,470.02 is: 5,205.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.78 : 19,996.07 = 3,470.02 : x
  2. Step 2: Convert to fraction form
    13,330.78/19,996.07 = 3,470.02/x
  3. Step 3: Cross multiply
    13,330.78x = 19,996.07 × 3,470.02
  4. Step 4: Simplify right side
    13,330.78x = 69,386,762.82
  5. Step 5: Solve for x
    x = 69,386,762.82/13,330.78
  6. Step 6: Final answer
    x = 5,205.00

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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.