Home / 8,889.20-13,366.20-7,463.60

Finding the Fourth Proportional to 8,889.20, 13,366.20 and 7,463.60

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Solution

The fourth proportional to 8,889.20, 13,366.20 and 7,463.60 is: 11,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.20 : 13,366.20 = 7,463.60 : x
  2. Step 2: Convert to fraction form
    8,889.20/13,366.20 = 7,463.60/x
  3. Step 3: Cross multiply
    8,889.20x = 13,366.20 × 7,463.60
  4. Step 4: Simplify right side
    8,889.20x = 99,759,970.32
  5. Step 5: Solve for x
    x = 99,759,970.32/8,889.20
  6. Step 6: Final answer
    x = 11,222.60

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1.5x scale

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.