Home / 13,365.68-20,035.32-6,445.04

Finding the Fourth Proportional to 13,365.68, 20,035.32 and 6,445.04

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Solution

The fourth proportional to 13,365.68, 20,035.32 and 6,445.04 is: 9,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.68 : 20,035.32 = 6,445.04 : x
  2. Step 2: Convert to fraction form
    13,365.68/20,035.32 = 6,445.04/x
  3. Step 3: Cross multiply
    13,365.68x = 20,035.32 × 6,445.04
  4. Step 4: Simplify right side
    13,365.68x = 129,128,438.81
  5. Step 5: Solve for x
    x = 129,128,438.81/13,365.68
  6. Step 6: Final answer
    x = 9,661.19

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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.