Home / 13,084.83-18,061.70-7,779.62

Finding the Fourth Proportional to 13,084.83, 18,061.70 and 7,779.62

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Solution

The fourth proportional to 13,084.83, 18,061.70 and 7,779.62 is: 10,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,084.83 : 18,061.70 = 7,779.62 : x
  2. Step 2: Convert to fraction form
    13,084.83/18,061.70 = 7,779.62/x
  3. Step 3: Cross multiply
    13,084.83x = 18,061.70 × 7,779.62
  4. Step 4: Simplify right side
    13,084.83x = 140,513,162.55
  5. Step 5: Solve for x
    x = 140,513,162.55/13,084.83
  6. Step 6: Final answer
    x = 10,738.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.