Home / 13,749.35-20,627.66-4,985.55

Finding the Fourth Proportional to 13,749.35, 20,627.66 and 4,985.55

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Solution

The fourth proportional to 13,749.35, 20,627.66 and 4,985.55 is: 7,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.35 : 20,627.66 = 4,985.55 : x
  2. Step 2: Convert to fraction form
    13,749.35/20,627.66 = 4,985.55/x
  3. Step 3: Cross multiply
    13,749.35x = 20,627.66 × 4,985.55
  4. Step 4: Simplify right side
    13,749.35x = 102,840,242.78
  5. Step 5: Solve for x
    x = 102,840,242.78/13,749.35
  6. Step 6: Final answer
    x = 7,479.65

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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.