Home / 13,380.76-20,071.59-6,357.16

Finding the Fourth Proportional to 13,380.76, 20,071.59 and 6,357.16

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Solution

The fourth proportional to 13,380.76, 20,071.59 and 6,357.16 is: 9,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.76 : 20,071.59 = 6,357.16 : x
  2. Step 2: Convert to fraction form
    13,380.76/20,071.59 = 6,357.16/x
  3. Step 3: Cross multiply
    13,380.76x = 20,071.59 × 6,357.16
  4. Step 4: Simplify right side
    13,380.76x = 127,598,309.08
  5. Step 5: Solve for x
    x = 127,598,309.08/13,380.76
  6. Step 6: Final answer
    x = 9,535.95

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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.