Home / 8,880.39-13,320.56-4,987.53

Finding the Fourth Proportional to 8,880.39, 13,320.56 and 4,987.53

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Solution

The fourth proportional to 8,880.39, 13,320.56 and 4,987.53 is: 7,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.39 : 13,320.56 = 4,987.53 : x
  2. Step 2: Convert to fraction form
    8,880.39/13,320.56 = 4,987.53/x
  3. Step 3: Cross multiply
    8,880.39x = 13,320.56 × 4,987.53
  4. Step 4: Simplify right side
    8,880.39x = 66,436,705.09
  5. Step 5: Solve for x
    x = 66,436,705.09/8,880.39
  6. Step 6: Final answer
    x = 7,481.28

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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.