Home / 10,869.80-16,304.70-3,943.40

Finding the Fourth Proportional to 10,869.80, 16,304.70 and 3,943.40

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Solution

The fourth proportional to 10,869.80, 16,304.70 and 3,943.40 is: 5,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.80 : 16,304.70 = 3,943.40 : x
  2. Step 2: Convert to fraction form
    10,869.80/16,304.70 = 3,943.40/x
  3. Step 3: Cross multiply
    10,869.80x = 16,304.70 × 3,943.40
  4. Step 4: Simplify right side
    10,869.80x = 64,295,953.98
  5. Step 5: Solve for x
    x = 64,295,953.98/10,869.80
  6. Step 6: Final answer
    x = 5,915.10

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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.