Home / 12,622.80-17,420.76-7,588.66

Finding the Fourth Proportional to 12,622.80, 17,420.76 and 7,588.66

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Solution

The fourth proportional to 12,622.80, 17,420.76 and 7,588.66 is: 10,473.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.80 : 17,420.76 = 7,588.66 : x
  2. Step 2: Convert to fraction form
    12,622.80/17,420.76 = 7,588.66/x
  3. Step 3: Cross multiply
    12,622.80x = 17,420.76 × 7,588.66
  4. Step 4: Simplify right side
    12,622.80x = 132,200,224.58
  5. Step 5: Solve for x
    x = 132,200,224.58/12,622.80
  6. Step 6: Final answer
    x = 10,473.13

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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.