Home / 13,929.03-19,211.33-9,680.04

Finding the Fourth Proportional to 13,929.03, 19,211.33 and 9,680.04

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Solution

The fourth proportional to 13,929.03, 19,211.33 and 9,680.04 is: 13,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.03 : 19,211.33 = 9,680.04 : x
  2. Step 2: Convert to fraction form
    13,929.03/19,211.33 = 9,680.04/x
  3. Step 3: Cross multiply
    13,929.03x = 19,211.33 × 9,680.04
  4. Step 4: Simplify right side
    13,929.03x = 185,966,467.05
  5. Step 5: Solve for x
    x = 185,966,467.05/13,929.03
  6. Step 6: Final answer
    x = 13,351.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.