Home / 13,389.68-20,084.34-4,155.68

Finding the Fourth Proportional to 13,389.68, 20,084.34 and 4,155.68

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Solution

The fourth proportional to 13,389.68, 20,084.34 and 4,155.68 is: 6,233.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.68 : 20,084.34 = 4,155.68 : x
  2. Step 2: Convert to fraction form
    13,389.68/20,084.34 = 4,155.68/x
  3. Step 3: Cross multiply
    13,389.68x = 20,084.34 × 4,155.68
  4. Step 4: Simplify right side
    13,389.68x = 83,464,090.05
  5. Step 5: Solve for x
    x = 83,464,090.05/13,389.68
  6. Step 6: Final answer
    x = 6,233.46

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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.