Home / 8,980.06-13,479.81-5,475.61

Finding the Fourth Proportional to 8,980.06, 13,479.81 and 5,475.61

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Solution

The fourth proportional to 8,980.06, 13,479.81 and 5,475.61 is: 8,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.06 : 13,479.81 = 5,475.61 : x
  2. Step 2: Convert to fraction form
    8,980.06/13,479.81 = 5,475.61/x
  3. Step 3: Cross multiply
    8,980.06x = 13,479.81 × 5,475.61
  4. Step 4: Simplify right side
    8,980.06x = 73,810,182.43
  5. Step 5: Solve for x
    x = 73,810,182.43/8,980.06
  6. Step 6: Final answer
    x = 8,219.34

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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.