Home / 10,887.72-15,024.60-6,172.32

Finding the Fourth Proportional to 10,887.72, 15,024.60 and 6,172.32

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Solution

The fourth proportional to 10,887.72, 15,024.60 and 6,172.32 is: 8,517.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.72 : 15,024.60 = 6,172.32 : x
  2. Step 2: Convert to fraction form
    10,887.72/15,024.60 = 6,172.32/x
  3. Step 3: Cross multiply
    10,887.72x = 15,024.60 × 6,172.32
  4. Step 4: Simplify right side
    10,887.72x = 92,736,639.07
  5. Step 5: Solve for x
    x = 92,736,639.07/10,887.72
  6. Step 6: Final answer
    x = 8,517.54

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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.