Home / 11,100.46-15,319.10-6,384.75

Finding the Fourth Proportional to 11,100.46, 15,319.10 and 6,384.75

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Solution

The fourth proportional to 11,100.46, 15,319.10 and 6,384.75 is: 8,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.46 : 15,319.10 = 6,384.75 : x
  2. Step 2: Convert to fraction form
    11,100.46/15,319.10 = 6,384.75/x
  3. Step 3: Cross multiply
    11,100.46x = 15,319.10 × 6,384.75
  4. Step 4: Simplify right side
    11,100.46x = 97,808,623.73
  5. Step 5: Solve for x
    x = 97,808,623.73/11,100.46
  6. Step 6: Final answer
    x = 8,811.22

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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.