Home / 13,188.09-19,775.76-4,872.03

Finding the Fourth Proportional to 13,188.09, 19,775.76 and 4,872.03

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Solution

The fourth proportional to 13,188.09, 19,775.76 and 4,872.03 is: 7,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.09 : 19,775.76 = 4,872.03 : x
  2. Step 2: Convert to fraction form
    13,188.09/19,775.76 = 4,872.03/x
  3. Step 3: Cross multiply
    13,188.09x = 19,775.76 × 4,872.03
  4. Step 4: Simplify right side
    13,188.09x = 96,348,095.99
  5. Step 5: Solve for x
    x = 96,348,095.99/13,188.09
  6. Step 6: Final answer
    x = 7,305.69

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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.