Home / 8,989.76-13,481.40-6,216.32

Finding the Fourth Proportional to 8,989.76, 13,481.40 and 6,216.32

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Solution

The fourth proportional to 8,989.76, 13,481.40 and 6,216.32 is: 9,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.76 : 13,481.40 = 6,216.32 : x
  2. Step 2: Convert to fraction form
    8,989.76/13,481.40 = 6,216.32/x
  3. Step 3: Cross multiply
    8,989.76x = 13,481.40 × 6,216.32
  4. Step 4: Simplify right side
    8,989.76x = 83,804,696.45
  5. Step 5: Solve for x
    x = 83,804,696.45/8,989.76
  6. Step 6: Final answer
    x = 9,322.24

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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.