Home / 11,172.17-15,419.49-6,459.32

Finding the Fourth Proportional to 11,172.17, 15,419.49 and 6,459.32

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Solution

The fourth proportional to 11,172.17, 15,419.49 and 6,459.32 is: 8,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.17 : 15,419.49 = 6,459.32 : x
  2. Step 2: Convert to fraction form
    11,172.17/15,419.49 = 6,459.32/x
  3. Step 3: Cross multiply
    11,172.17x = 15,419.49 × 6,459.32
  4. Step 4: Simplify right side
    11,172.17x = 99,599,420.15
  5. Step 5: Solve for x
    x = 99,599,420.15/11,172.17
  6. Step 6: Final answer
    x = 8,914.96

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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.