Home / 13,853.39-19,116.96-7,885.04

Finding the Fourth Proportional to 13,853.39, 19,116.96 and 7,885.04

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Solution

The fourth proportional to 13,853.39, 19,116.96 and 7,885.04 is: 10,880.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.39 : 19,116.96 = 7,885.04 : x
  2. Step 2: Convert to fraction form
    13,853.39/19,116.96 = 7,885.04/x
  3. Step 3: Cross multiply
    13,853.39x = 19,116.96 × 7,885.04
  4. Step 4: Simplify right side
    13,853.39x = 150,737,994.28
  5. Step 5: Solve for x
    x = 150,737,994.28/13,853.39
  6. Step 6: Final answer
    x = 10,880.95

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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.