Home / 13,203.16-18,222.37-8,425.17

Finding the Fourth Proportional to 13,203.16, 18,222.37 and 8,425.17

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Solution

The fourth proportional to 13,203.16, 18,222.37 and 8,425.17 is: 11,628.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.16 : 18,222.37 = 8,425.17 : x
  2. Step 2: Convert to fraction form
    13,203.16/18,222.37 = 8,425.17/x
  3. Step 3: Cross multiply
    13,203.16x = 18,222.37 × 8,425.17
  4. Step 4: Simplify right side
    13,203.16x = 153,526,543.99
  5. Step 5: Solve for x
    x = 153,526,543.99/13,203.16
  6. Step 6: Final answer
    x = 11,628.02

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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.