Home / 11,097.20-15,312.10-6,316.86

Finding the Fourth Proportional to 11,097.20, 15,312.10 and 6,316.86

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Solution

The fourth proportional to 11,097.20, 15,312.10 and 6,316.86 is: 8,716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.20 : 15,312.10 = 6,316.86 : x
  2. Step 2: Convert to fraction form
    11,097.20/15,312.10 = 6,316.86/x
  3. Step 3: Cross multiply
    11,097.20x = 15,312.10 × 6,316.86
  4. Step 4: Simplify right side
    11,097.20x = 96,724,388.06
  5. Step 5: Solve for x
    x = 96,724,388.06/11,097.20
  6. Step 6: Final answer
    x = 8,716.11

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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.