Home / 10,711.40-16,056.30-4,872.20

Finding the Fourth Proportional to 10,711.40, 16,056.30 and 4,872.20

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Solution

The fourth proportional to 10,711.40, 16,056.30 and 4,872.20 is: 7,303.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.40 : 16,056.30 = 4,872.20 : x
  2. Step 2: Convert to fraction form
    10,711.40/16,056.30 = 4,872.20/x
  3. Step 3: Cross multiply
    10,711.40x = 16,056.30 × 4,872.20
  4. Step 4: Simplify right side
    10,711.40x = 78,229,504.86
  5. Step 5: Solve for x
    x = 78,229,504.86/10,711.40
  6. Step 6: Final answer
    x = 7,303.39

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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.