Home / 13,788.93-20,685.45-6,394.14

Finding the Fourth Proportional to 13,788.93, 20,685.45 and 6,394.14

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Solution

The fourth proportional to 13,788.93, 20,685.45 and 6,394.14 is: 9,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.93 : 20,685.45 = 6,394.14 : x
  2. Step 2: Convert to fraction form
    13,788.93/20,685.45 = 6,394.14/x
  3. Step 3: Cross multiply
    13,788.93x = 20,685.45 × 6,394.14
  4. Step 4: Simplify right side
    13,788.93x = 132,265,612.49
  5. Step 5: Solve for x
    x = 132,265,612.49/13,788.93
  6. Step 6: Final answer
    x = 9,592.16

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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.