Home / 13,189.06-19,777.21-4,872.99

Finding the Fourth Proportional to 13,189.06, 19,777.21 and 4,872.99

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Solution

The fourth proportional to 13,189.06, 19,777.21 and 4,872.99 is: 7,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.06 : 19,777.21 = 4,872.99 : x
  2. Step 2: Convert to fraction form
    13,189.06/19,777.21 = 4,872.99/x
  3. Step 3: Cross multiply
    13,189.06x = 19,777.21 × 4,872.99
  4. Step 4: Simplify right side
    13,189.06x = 96,374,235.95
  5. Step 5: Solve for x
    x = 96,374,235.95/13,189.06
  6. Step 6: Final answer
    x = 7,307.13

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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.