Home / 13,191.60-19,790.40-6,166.50

Finding the Fourth Proportional to 13,191.60, 19,790.40 and 6,166.50

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Solution

The fourth proportional to 13,191.60, 19,790.40 and 6,166.50 is: 9,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.60 : 19,790.40 = 6,166.50 : x
  2. Step 2: Convert to fraction form
    13,191.60/19,790.40 = 6,166.50/x
  3. Step 3: Cross multiply
    13,191.60x = 19,790.40 × 6,166.50
  4. Step 4: Simplify right side
    13,191.60x = 122,037,501.60
  5. Step 5: Solve for x
    x = 122,037,501.60/13,191.60
  6. Step 6: Final answer
    x = 9,251.15

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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.