Home / 18,280.49-27,430.65-7,756.43

Finding the Fourth Proportional to 18,280.49, 27,430.65 and 7,756.43

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Solution

The fourth proportional to 18,280.49, 27,430.65 and 7,756.43 is: 11,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.49 : 27,430.65 = 7,756.43 : x
  2. Step 2: Convert to fraction form
    18,280.49/27,430.65 = 7,756.43/x
  3. Step 3: Cross multiply
    18,280.49x = 27,430.65 × 7,756.43
  4. Step 4: Simplify right side
    18,280.49x = 212,763,779.43
  5. Step 5: Solve for x
    x = 212,763,779.43/18,280.49
  6. Step 6: Final answer
    x = 11,638.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.