Home / 13,688.01-20,535.10-4,328.60

Finding the Fourth Proportional to 13,688.01, 20,535.10 and 4,328.60

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Solution

The fourth proportional to 13,688.01, 20,535.10 and 4,328.60 is: 6,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.01 : 20,535.10 = 4,328.60 : x
  2. Step 2: Convert to fraction form
    13,688.01/20,535.10 = 4,328.60/x
  3. Step 3: Cross multiply
    13,688.01x = 20,535.10 × 4,328.60
  4. Step 4: Simplify right side
    13,688.01x = 88,888,120.36
  5. Step 5: Solve for x
    x = 88,888,120.36/13,688.01
  6. Step 6: Final answer
    x = 6,493.87

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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.