Home / 12,638.04-17,440.37-6,972.83

Finding the Fourth Proportional to 12,638.04, 17,440.37 and 6,972.83

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Solution

The fourth proportional to 12,638.04, 17,440.37 and 6,972.83 is: 9,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638.04 : 17,440.37 = 6,972.83 : x
  2. Step 2: Convert to fraction form
    12,638.04/17,440.37 = 6,972.83/x
  3. Step 3: Cross multiply
    12,638.04x = 17,440.37 × 6,972.83
  4. Step 4: Simplify right side
    12,638.04x = 121,608,841.95
  5. Step 5: Solve for x
    x = 121,608,841.95/12,638.04
  6. Step 6: Final answer
    x = 9,622.45

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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.