Home / 13,445.96-18,552.68-7,855.88

Finding the Fourth Proportional to 13,445.96, 18,552.68 and 7,855.88

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Solution

The fourth proportional to 13,445.96, 18,552.68 and 7,855.88 is: 10,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.96 : 18,552.68 = 7,855.88 : x
  2. Step 2: Convert to fraction form
    13,445.96/18,552.68 = 7,855.88/x
  3. Step 3: Cross multiply
    13,445.96x = 18,552.68 × 7,855.88
  4. Step 4: Simplify right side
    13,445.96x = 145,747,627.76
  5. Step 5: Solve for x
    x = 145,747,627.76/13,445.96
  6. Step 6: Final answer
    x = 10,839.51

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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.