Home / 13,959.20-19,290.74-10,202.42

Finding the Fourth Proportional to 13,959.20, 19,290.74 and 10,202.42

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Solution

The fourth proportional to 13,959.20, 19,290.74 and 10,202.42 is: 14,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.20 : 19,290.74 = 10,202.42 : x
  2. Step 2: Convert to fraction form
    13,959.20/19,290.74 = 10,202.42/x
  3. Step 3: Cross multiply
    13,959.20x = 19,290.74 × 10,202.42
  4. Step 4: Simplify right side
    13,959.20x = 196,812,084.13
  5. Step 5: Solve for x
    x = 196,812,084.13/13,959.20
  6. Step 6: Final answer
    x = 14,099.10

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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.