Home / 13,505.76-20,253.51-6,483.79

Finding the Fourth Proportional to 13,505.76, 20,253.51 and 6,483.79

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Solution

The fourth proportional to 13,505.76, 20,253.51 and 6,483.79 is: 9,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.76 : 20,253.51 = 6,483.79 : x
  2. Step 2: Convert to fraction form
    13,505.76/20,253.51 = 6,483.79/x
  3. Step 3: Cross multiply
    13,505.76x = 20,253.51 × 6,483.79
  4. Step 4: Simplify right side
    13,505.76x = 131,319,505.60
  5. Step 5: Solve for x
    x = 131,319,505.60/13,505.76
  6. Step 6: Final answer
    x = 9,723.22

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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.