Home / 13,489.07-20,236.65-4,130.39

Finding the Fourth Proportional to 13,489.07, 20,236.65 and 4,130.39

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Solution

The fourth proportional to 13,489.07, 20,236.65 and 4,130.39 is: 6,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.07 : 20,236.65 = 4,130.39 : x
  2. Step 2: Convert to fraction form
    13,489.07/20,236.65 = 4,130.39/x
  3. Step 3: Cross multiply
    13,489.07x = 20,236.65 × 4,130.39
  4. Step 4: Simplify right side
    13,489.07x = 83,585,155.61
  5. Step 5: Solve for x
    x = 83,585,155.61/13,489.07
  6. Step 6: Final answer
    x = 6,196.51

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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.