Home / 13,685.76-20,530.80-6,297.48

Finding the Fourth Proportional to 13,685.76, 20,530.80 and 6,297.48

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Solution

The fourth proportional to 13,685.76, 20,530.80 and 6,297.48 is: 9,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,685.76 : 20,530.80 = 6,297.48 : x
  2. Step 2: Convert to fraction form
    13,685.76/20,530.80 = 6,297.48/x
  3. Step 3: Cross multiply
    13,685.76x = 20,530.80 × 6,297.48
  4. Step 4: Simplify right side
    13,685.76x = 129,292,302.38
  5. Step 5: Solve for x
    x = 129,292,302.38/13,685.76
  6. Step 6: Final answer
    x = 9,447.21

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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.