Home / 13,541.35-20,312.44-3,680.84

Finding the Fourth Proportional to 13,541.35, 20,312.44 and 3,680.84

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Solution

The fourth proportional to 13,541.35, 20,312.44 and 3,680.84 is: 5,521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.35 : 20,312.44 = 3,680.84 : x
  2. Step 2: Convert to fraction form
    13,541.35/20,312.44 = 3,680.84/x
  3. Step 3: Cross multiply
    13,541.35x = 20,312.44 × 3,680.84
  4. Step 4: Simplify right side
    13,541.35x = 74,766,751.59
  5. Step 5: Solve for x
    x = 74,766,751.59/13,541.35
  6. Step 6: Final answer
    x = 5,521.37

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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.