Home / 13,915.85-20,868.58-5,593.05

Finding the Fourth Proportional to 13,915.85, 20,868.58 and 5,593.05

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Solution

The fourth proportional to 13,915.85, 20,868.58 and 5,593.05 is: 8,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.85 : 20,868.58 = 5,593.05 : x
  2. Step 2: Convert to fraction form
    13,915.85/20,868.58 = 5,593.05/x
  3. Step 3: Cross multiply
    13,915.85x = 20,868.58 × 5,593.05
  4. Step 4: Simplify right side
    13,915.85x = 116,719,011.37
  5. Step 5: Solve for x
    x = 116,719,011.37/13,915.85
  6. Step 6: Final answer
    x = 8,387.49

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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.