Home / 10,887.89-15,024.83-6,172.07

Finding the Fourth Proportional to 10,887.89, 15,024.83 and 6,172.07

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Solution

The fourth proportional to 10,887.89, 15,024.83 and 6,172.07 is: 8,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.89 : 15,024.83 = 6,172.07 : x
  2. Step 2: Convert to fraction form
    10,887.89/15,024.83 = 6,172.07/x
  3. Step 3: Cross multiply
    10,887.89x = 15,024.83 × 6,172.07
  4. Step 4: Simplify right side
    10,887.89x = 92,734,196.51
  5. Step 5: Solve for x
    x = 92,734,196.51/10,887.89
  6. Step 6: Final answer
    x = 8,517.19

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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.