Home / 8,687.19-13,030.81-2,113.38

Finding the Fourth Proportional to 8,687.19, 13,030.81 and 2,113.38

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Solution

The fourth proportional to 8,687.19, 13,030.81 and 2,113.38 is: 3,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.19 : 13,030.81 = 2,113.38 : x
  2. Step 2: Convert to fraction form
    8,687.19/13,030.81 = 2,113.38/x
  3. Step 3: Cross multiply
    8,687.19x = 13,030.81 × 2,113.38
  4. Step 4: Simplify right side
    8,687.19x = 27,539,053.24
  5. Step 5: Solve for x
    x = 27,539,053.24/8,687.19
  6. Step 6: Final answer
    x = 3,170.08

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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.