Home / 7,835.22-10,812.51-4,479.39

Finding the Fourth Proportional to 7,835.22, 10,812.51 and 4,479.39

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Solution

The fourth proportional to 7,835.22, 10,812.51 and 4,479.39 is: 6,181.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.22 : 10,812.51 = 4,479.39 : x
  2. Step 2: Convert to fraction form
    7,835.22/10,812.51 = 4,479.39/x
  3. Step 3: Cross multiply
    7,835.22x = 10,812.51 × 4,479.39
  4. Step 4: Simplify right side
    7,835.22x = 48,433,449.17
  5. Step 5: Solve for x
    x = 48,433,449.17/7,835.22
  6. Step 6: Final answer
    x = 6,181.50

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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.