Home / 13,377.05-18,458.58-7,712.01

Finding the Fourth Proportional to 13,377.05, 18,458.58 and 7,712.01

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Solution

The fourth proportional to 13,377.05, 18,458.58 and 7,712.01 is: 10,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.05 : 18,458.58 = 7,712.01 : x
  2. Step 2: Convert to fraction form
    13,377.05/18,458.58 = 7,712.01/x
  3. Step 3: Cross multiply
    13,377.05x = 18,458.58 × 7,712.01
  4. Step 4: Simplify right side
    13,377.05x = 142,352,782.47
  5. Step 5: Solve for x
    x = 142,352,782.47/13,377.05
  6. Step 6: Final answer
    x = 10,641.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.