Home / 8,330.22-12,440.37-7,411.68

Finding the Fourth Proportional to 8,330.22, 12,440.37 and 7,411.68

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Solution

The fourth proportional to 8,330.22, 12,440.37 and 7,411.68 is: 11,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.22 : 12,440.37 = 7,411.68 : x
  2. Step 2: Convert to fraction form
    8,330.22/12,440.37 = 7,411.68/x
  3. Step 3: Cross multiply
    8,330.22x = 12,440.37 × 7,411.68
  4. Step 4: Simplify right side
    8,330.22x = 92,204,041.52
  5. Step 5: Solve for x
    x = 92,204,041.52/8,330.22
  6. Step 6: Final answer
    x = 11,068.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.