Home / 10,511.56-15,771.93-5,580.01

Finding the Fourth Proportional to 10,511.56, 15,771.93 and 5,580.01

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Solution

The fourth proportional to 10,511.56, 15,771.93 and 5,580.01 is: 8,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.56 : 15,771.93 = 5,580.01 : x
  2. Step 2: Convert to fraction form
    10,511.56/15,771.93 = 5,580.01/x
  3. Step 3: Cross multiply
    10,511.56x = 15,771.93 × 5,580.01
  4. Step 4: Simplify right side
    10,511.56x = 88,007,527.12
  5. Step 5: Solve for x
    x = 88,007,527.12/10,511.56
  6. Step 6: Final answer
    x = 8,372.45

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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.