Home / 13,397.04-20,090.16-6,820.92

Finding the Fourth Proportional to 13,397.04, 20,090.16 and 6,820.92

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Solution

The fourth proportional to 13,397.04, 20,090.16 and 6,820.92 is: 10,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.04 : 20,090.16 = 6,820.92 : x
  2. Step 2: Convert to fraction form
    13,397.04/20,090.16 = 6,820.92/x
  3. Step 3: Cross multiply
    13,397.04x = 20,090.16 × 6,820.92
  4. Step 4: Simplify right side
    13,397.04x = 137,033,374.15
  5. Step 5: Solve for x
    x = 137,033,374.15/13,397.04
  6. Step 6: Final answer
    x = 10,228.63

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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.