Home / 10,631.36-15,947.04-4,784.80

Finding the Fourth Proportional to 10,631.36, 15,947.04 and 4,784.80

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Solution

The fourth proportional to 10,631.36, 15,947.04 and 4,784.80 is: 7,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.36 : 15,947.04 = 4,784.80 : x
  2. Step 2: Convert to fraction form
    10,631.36/15,947.04 = 4,784.80/x
  3. Step 3: Cross multiply
    10,631.36x = 15,947.04 × 4,784.80
  4. Step 4: Simplify right side
    10,631.36x = 76,303,396.99
  5. Step 5: Solve for x
    x = 76,303,396.99/10,631.36
  6. Step 6: Final answer
    x = 7,177.20

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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.