Home / 13,487.22-18,612.45-7,825.34

Finding the Fourth Proportional to 13,487.22, 18,612.45 and 7,825.34

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Solution

The fourth proportional to 13,487.22, 18,612.45 and 7,825.34 is: 10,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.22 : 18,612.45 = 7,825.34 : x
  2. Step 2: Convert to fraction form
    13,487.22/18,612.45 = 7,825.34/x
  3. Step 3: Cross multiply
    13,487.22x = 18,612.45 × 7,825.34
  4. Step 4: Simplify right side
    13,487.22x = 145,648,796.01
  5. Step 5: Solve for x
    x = 145,648,796.01/13,487.22
  6. Step 6: Final answer
    x = 10,799.02

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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.