Home / 13,135.02-19,656.30-8,206.98

Finding the Fourth Proportional to 13,135.02, 19,656.30 and 8,206.98

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Solution

The fourth proportional to 13,135.02, 19,656.30 and 8,206.98 is: 12,281.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.02 : 19,656.30 = 8,206.98 : x
  2. Step 2: Convert to fraction form
    13,135.02/19,656.30 = 8,206.98/x
  3. Step 3: Cross multiply
    13,135.02x = 19,656.30 × 8,206.98
  4. Step 4: Simplify right side
    13,135.02x = 161,318,860.97
  5. Step 5: Solve for x
    x = 161,318,860.97/13,135.02
  6. Step 6: Final answer
    x = 12,281.58

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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.