Home / 13,768.08-20,660.10-5,870.16

Finding the Fourth Proportional to 13,768.08, 20,660.10 and 5,870.16

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Solution

The fourth proportional to 13,768.08, 20,660.10 and 5,870.16 is: 8,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.08 : 20,660.10 = 5,870.16 : x
  2. Step 2: Convert to fraction form
    13,768.08/20,660.10 = 5,870.16/x
  3. Step 3: Cross multiply
    13,768.08x = 20,660.10 × 5,870.16
  4. Step 4: Simplify right side
    13,768.08x = 121,278,092.62
  5. Step 5: Solve for x
    x = 121,278,092.62/13,768.08
  6. Step 6: Final answer
    x = 8,808.64

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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.