Home / 13,528.84-20,293.41-4,168.78

Finding the Fourth Proportional to 13,528.84, 20,293.41 and 4,168.78

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Solution

The fourth proportional to 13,528.84, 20,293.41 and 4,168.78 is: 6,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.84 : 20,293.41 = 4,168.78 : x
  2. Step 2: Convert to fraction form
    13,528.84/20,293.41 = 4,168.78/x
  3. Step 3: Cross multiply
    13,528.84x = 20,293.41 × 4,168.78
  4. Step 4: Simplify right side
    13,528.84x = 84,598,840.79
  5. Step 5: Solve for x
    x = 84,598,840.79/13,528.84
  6. Step 6: Final answer
    x = 6,253.22

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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.