Home / 13,716.42-20,587.40-5,402.18

Finding the Fourth Proportional to 13,716.42, 20,587.40 and 5,402.18

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Solution

The fourth proportional to 13,716.42, 20,587.40 and 5,402.18 is: 8,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.42 : 20,587.40 = 5,402.18 : x
  2. Step 2: Convert to fraction form
    13,716.42/20,587.40 = 5,402.18/x
  3. Step 3: Cross multiply
    13,716.42x = 20,587.40 × 5,402.18
  4. Step 4: Simplify right side
    13,716.42x = 111,216,710.58
  5. Step 5: Solve for x
    x = 111,216,710.58/13,716.42
  6. Step 6: Final answer
    x = 8,108.29

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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.