Home / 12,669.18-17,479.19-7,359.63

Finding the Fourth Proportional to 12,669.18, 17,479.19 and 7,359.63

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Solution

The fourth proportional to 12,669.18, 17,479.19 and 7,359.63 is: 10,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,669.18 : 17,479.19 = 7,359.63 : x
  2. Step 2: Convert to fraction form
    12,669.18/17,479.19 = 7,359.63/x
  3. Step 3: Cross multiply
    12,669.18x = 17,479.19 × 7,359.63
  4. Step 4: Simplify right side
    12,669.18x = 128,640,334.30
  5. Step 5: Solve for x
    x = 128,640,334.30/12,669.18
  6. Step 6: Final answer
    x = 10,153.80

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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.