Home / 13,335.95-19,980.23-6,308.39

Finding the Fourth Proportional to 13,335.95, 19,980.23 and 6,308.39

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Solution

The fourth proportional to 13,335.95, 19,980.23 and 6,308.39 is: 9,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.95 : 19,980.23 = 6,308.39 : x
  2. Step 2: Convert to fraction form
    13,335.95/19,980.23 = 6,308.39/x
  3. Step 3: Cross multiply
    13,335.95x = 19,980.23 × 6,308.39
  4. Step 4: Simplify right side
    13,335.95x = 126,042,951.69
  5. Step 5: Solve for x
    x = 126,042,951.69/13,335.95
  6. Step 6: Final answer
    x = 9,451.37

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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.