Home / 13,104.40-19,661.80-4,785

Finding the Fourth Proportional to 13,104.40, 19,661.80 and 4,785

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Solution

The fourth proportional to 13,104.40, 19,661.80 and 4,785 is: 7,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.40 : 19,661.80 = 4,785 : x
  2. Step 2: Convert to fraction form
    13,104.40/19,661.80 = 4,785/x
  3. Step 3: Cross multiply
    13,104.40x = 19,661.80 × 4,785
  4. Step 4: Simplify right side
    13,104.40x = 94,081,713
  5. Step 5: Solve for x
    x = 94,081,713/13,104.40
  6. Step 6: Final answer
    x = 7,179.40

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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.