Home / 11,047.20-16,570.80-9,807.90

Finding the Fourth Proportional to 11,047.20, 16,570.80 and 9,807.90

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Solution

The fourth proportional to 11,047.20, 16,570.80 and 9,807.90 is: 14,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,047.20 : 16,570.80 = 9,807.90 : x
  2. Step 2: Convert to fraction form
    11,047.20/16,570.80 = 9,807.90/x
  3. Step 3: Cross multiply
    11,047.20x = 16,570.80 × 9,807.90
  4. Step 4: Simplify right side
    11,047.20x = 162,524,749.32
  5. Step 5: Solve for x
    x = 162,524,749.32/11,047.20
  6. Step 6: Final answer
    x = 14,711.85

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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.