Home / 12,477.12-17,218.16-8,223.04

Finding the Fourth Proportional to 12,477.12, 17,218.16 and 8,223.04

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Solution

The fourth proportional to 12,477.12, 17,218.16 and 8,223.04 is: 11,347.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.12 : 17,218.16 = 8,223.04 : x
  2. Step 2: Convert to fraction form
    12,477.12/17,218.16 = 8,223.04/x
  3. Step 3: Cross multiply
    12,477.12x = 17,218.16 × 8,223.04
  4. Step 4: Simplify right side
    12,477.12x = 141,585,618.41
  5. Step 5: Solve for x
    x = 141,585,618.41/12,477.12
  6. Step 6: Final answer
    x = 11,347.62

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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.