Home / 8,922.04-13,386.16-3,992.20

Finding the Fourth Proportional to 8,922.04, 13,386.16 and 3,992.20

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Solution

The fourth proportional to 8,922.04, 13,386.16 and 3,992.20 is: 5,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.04 : 13,386.16 = 3,992.20 : x
  2. Step 2: Convert to fraction form
    8,922.04/13,386.16 = 3,992.20/x
  3. Step 3: Cross multiply
    8,922.04x = 13,386.16 × 3,992.20
  4. Step 4: Simplify right side
    8,922.04x = 53,440,227.95
  5. Step 5: Solve for x
    x = 53,440,227.95/8,922.04
  6. Step 6: Final answer
    x = 5,989.69

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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.