Home / 13,080.21-19,620.30-5,294.49

Finding the Fourth Proportional to 13,080.21, 19,620.30 and 5,294.49

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Solution

The fourth proportional to 13,080.21, 19,620.30 and 5,294.49 is: 7,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.21 : 19,620.30 = 5,294.49 : x
  2. Step 2: Convert to fraction form
    13,080.21/19,620.30 = 5,294.49/x
  3. Step 3: Cross multiply
    13,080.21x = 19,620.30 × 5,294.49
  4. Step 4: Simplify right side
    13,080.21x = 103,879,482.15
  5. Step 5: Solve for x
    x = 103,879,482.15/13,080.21
  6. Step 6: Final answer
    x = 7,941.73

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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.