Home / 11,819.04-16,311.06-7,103.40

Finding the Fourth Proportional to 11,819.04, 16,311.06 and 7,103.40

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Solution

The fourth proportional to 11,819.04, 16,311.06 and 7,103.40 is: 9,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.04 : 16,311.06 = 7,103.40 : x
  2. Step 2: Convert to fraction form
    11,819.04/16,311.06 = 7,103.40/x
  3. Step 3: Cross multiply
    11,819.04x = 16,311.06 × 7,103.40
  4. Step 4: Simplify right side
    11,819.04x = 115,863,983.60
  5. Step 5: Solve for x
    x = 115,863,983.60/11,819.04
  6. Step 6: Final answer
    x = 9,803.16

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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.