Home / 10,534.95-15,789.87-4,905.05

Finding the Fourth Proportional to 10,534.95, 15,789.87 and 4,905.05

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Solution

The fourth proportional to 10,534.95, 15,789.87 and 4,905.05 is: 7,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,534.95 : 15,789.87 = 4,905.05 : x
  2. Step 2: Convert to fraction form
    10,534.95/15,789.87 = 4,905.05/x
  3. Step 3: Cross multiply
    10,534.95x = 15,789.87 × 4,905.05
  4. Step 4: Simplify right side
    10,534.95x = 77,450,022.89
  5. Step 5: Solve for x
    x = 77,450,022.89/10,534.95
  6. Step 6: Final answer
    x = 7,351.72

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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.