Home / 8,719.06-13,080.65-6,946.85

Finding the Fourth Proportional to 8,719.06, 13,080.65 and 6,946.85

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Solution

The fourth proportional to 8,719.06, 13,080.65 and 6,946.85 is: 10,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.06 : 13,080.65 = 6,946.85 : x
  2. Step 2: Convert to fraction form
    8,719.06/13,080.65 = 6,946.85/x
  3. Step 3: Cross multiply
    8,719.06x = 13,080.65 × 6,946.85
  4. Step 4: Simplify right side
    8,719.06x = 90,869,213.32
  5. Step 5: Solve for x
    x = 90,869,213.32/8,719.06
  6. Step 6: Final answer
    x = 10,421.91

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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.