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Finding the Fourth Proportional to 13,223.03, 19,808.07 and 7,955.12

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Solution

The fourth proportional to 13,223.03, 19,808.07 and 7,955.12 is: 11,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.03 : 19,808.07 = 7,955.12 : x
  2. Step 2: Convert to fraction form
    13,223.03/19,808.07 = 7,955.12/x
  3. Step 3: Cross multiply
    13,223.03x = 19,808.07 × 7,955.12
  4. Step 4: Simplify right side
    13,223.03x = 157,575,474.78
  5. Step 5: Solve for x
    x = 157,575,474.78/13,223.03
  6. Step 6: Final answer
    x = 11,916.75

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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.