Home / 8,534.15-12,802.58-2,987.36

Finding the Fourth Proportional to 8,534.15, 12,802.58 and 2,987.36

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Solution

The fourth proportional to 8,534.15, 12,802.58 and 2,987.36 is: 4,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.15 : 12,802.58 = 2,987.36 : x
  2. Step 2: Convert to fraction form
    8,534.15/12,802.58 = 2,987.36/x
  3. Step 3: Cross multiply
    8,534.15x = 12,802.58 × 2,987.36
  4. Step 4: Simplify right side
    8,534.15x = 38,245,915.39
  5. Step 5: Solve for x
    x = 38,245,915.39/8,534.15
  6. Step 6: Final answer
    x = 4,481.51

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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.