Home / 8,686.98-13,030.53-2,447.58

Finding the Fourth Proportional to 8,686.98, 13,030.53 and 2,447.58

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Solution

The fourth proportional to 8,686.98, 13,030.53 and 2,447.58 is: 3,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.98 : 13,030.53 = 2,447.58 : x
  2. Step 2: Convert to fraction form
    8,686.98/13,030.53 = 2,447.58/x
  3. Step 3: Cross multiply
    8,686.98x = 13,030.53 × 2,447.58
  4. Step 4: Simplify right side
    8,686.98x = 31,893,264.62
  5. Step 5: Solve for x
    x = 31,893,264.62/8,686.98
  6. Step 6: Final answer
    x = 3,671.39

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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.