Home / 13,539.44-20,312.62-5,217.22

Finding the Fourth Proportional to 13,539.44, 20,312.62 and 5,217.22

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Solution

The fourth proportional to 13,539.44, 20,312.62 and 5,217.22 is: 7,827.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.44 : 20,312.62 = 5,217.22 : x
  2. Step 2: Convert to fraction form
    13,539.44/20,312.62 = 5,217.22/x
  3. Step 3: Cross multiply
    13,539.44x = 20,312.62 × 5,217.22
  4. Step 4: Simplify right side
    13,539.44x = 105,975,407.32
  5. Step 5: Solve for x
    x = 105,975,407.32/13,539.44
  6. Step 6: Final answer
    x = 7,827.16

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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.