Home / 13,486.08-20,203.20-7,625.28

Finding the Fourth Proportional to 13,486.08, 20,203.20 and 7,625.28

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Solution

The fourth proportional to 13,486.08, 20,203.20 and 7,625.28 is: 11,423.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.08 : 20,203.20 = 7,625.28 : x
  2. Step 2: Convert to fraction form
    13,486.08/20,203.20 = 7,625.28/x
  3. Step 3: Cross multiply
    13,486.08x = 20,203.20 × 7,625.28
  4. Step 4: Simplify right side
    13,486.08x = 154,055,056.90
  5. Step 5: Solve for x
    x = 154,055,056.90/13,486.08
  6. Step 6: Final answer
    x = 11,423.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.