Home / 8,980.40-12,392.52-5,626.64

Finding the Fourth Proportional to 8,980.40, 12,392.52 and 5,626.64

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Solution

The fourth proportional to 8,980.40, 12,392.52 and 5,626.64 is: 7,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.40 : 12,392.52 = 5,626.64 : x
  2. Step 2: Convert to fraction form
    8,980.40/12,392.52 = 5,626.64/x
  3. Step 3: Cross multiply
    8,980.40x = 12,392.52 × 5,626.64
  4. Step 4: Simplify right side
    8,980.40x = 69,728,248.73
  5. Step 5: Solve for x
    x = 69,728,248.73/8,980.40
  6. Step 6: Final answer
    x = 7,764.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.