Home / 13,945.55-20,911.50-9,730.82

Finding the Fourth Proportional to 13,945.55, 20,911.50 and 9,730.82

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Solution

The fourth proportional to 13,945.55, 20,911.50 and 9,730.82 is: 14,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.55 : 20,911.50 = 9,730.82 : x
  2. Step 2: Convert to fraction form
    13,945.55/20,911.50 = 9,730.82/x
  3. Step 3: Cross multiply
    13,945.55x = 20,911.50 × 9,730.82
  4. Step 4: Simplify right side
    13,945.55x = 203,486,094.71
  5. Step 5: Solve for x
    x = 203,486,094.71/13,945.55
  6. Step 6: Final answer
    x = 14,591.48

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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.