Home / 13,330.50-19,979.84-6,205.15

Finding the Fourth Proportional to 13,330.50, 19,979.84 and 6,205.15

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Solution

The fourth proportional to 13,330.50, 19,979.84 and 6,205.15 is: 9,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.50 : 19,979.84 = 6,205.15 : x
  2. Step 2: Convert to fraction form
    13,330.50/19,979.84 = 6,205.15/x
  3. Step 3: Cross multiply
    13,330.50x = 19,979.84 × 6,205.15
  4. Step 4: Simplify right side
    13,330.50x = 123,977,904.18
  5. Step 5: Solve for x
    x = 123,977,904.18/13,330.50
  6. Step 6: Final answer
    x = 9,300.32

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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.