Home / 13,055.13-19,582.70-3,821.13

Finding the Fourth Proportional to 13,055.13, 19,582.70 and 3,821.13

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Solution

The fourth proportional to 13,055.13, 19,582.70 and 3,821.13 is: 5,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.13 : 19,582.70 = 3,821.13 : x
  2. Step 2: Convert to fraction form
    13,055.13/19,582.70 = 3,821.13/x
  3. Step 3: Cross multiply
    13,055.13x = 19,582.70 × 3,821.13
  4. Step 4: Simplify right side
    13,055.13x = 74,828,042.45
  5. Step 5: Solve for x
    x = 74,828,042.45/13,055.13
  6. Step 6: Final answer
    x = 5,731.70

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Similar ratio
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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.