Home / 8,781.45-12,118.28-4,802.46

Finding the Fourth Proportional to 8,781.45, 12,118.28 and 4,802.46

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Solution

The fourth proportional to 8,781.45, 12,118.28 and 4,802.46 is: 6,627.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.45 : 12,118.28 = 4,802.46 : x
  2. Step 2: Convert to fraction form
    8,781.45/12,118.28 = 4,802.46/x
  3. Step 3: Cross multiply
    8,781.45x = 12,118.28 × 4,802.46
  4. Step 4: Simplify right side
    8,781.45x = 58,197,530.96
  5. Step 5: Solve for x
    x = 58,197,530.96/8,781.45
  6. Step 6: Final answer
    x = 6,627.33

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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.