Home / 10,355.85-15,539.45-4,811.81

Finding the Fourth Proportional to 10,355.85, 15,539.45 and 4,811.81

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Solution

The fourth proportional to 10,355.85, 15,539.45 and 4,811.81 is: 7,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.85 : 15,539.45 = 4,811.81 : x
  2. Step 2: Convert to fraction form
    10,355.85/15,539.45 = 4,811.81/x
  3. Step 3: Cross multiply
    10,355.85x = 15,539.45 × 4,811.81
  4. Step 4: Simplify right side
    10,355.85x = 74,772,779.15
  5. Step 5: Solve for x
    x = 74,772,779.15/10,355.85
  6. Step 6: Final answer
    x = 7,220.34

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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.