Home / 13,187.66-19,775.10-4,871.59

Finding the Fourth Proportional to 13,187.66, 19,775.10 and 4,871.59

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Solution

The fourth proportional to 13,187.66, 19,775.10 and 4,871.59 is: 7,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.66 : 19,775.10 = 4,871.59 : x
  2. Step 2: Convert to fraction form
    13,187.66/19,775.10 = 4,871.59/x
  3. Step 3: Cross multiply
    13,187.66x = 19,775.10 × 4,871.59
  4. Step 4: Simplify right side
    13,187.66x = 96,336,148.24
  5. Step 5: Solve for x
    x = 96,336,148.24/13,187.66
  6. Step 6: Final answer
    x = 7,305.02

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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.