Home / 11,349.12-15,650.64-7,571.28

Finding the Fourth Proportional to 11,349.12, 15,650.64 and 7,571.28

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Solution

The fourth proportional to 11,349.12, 15,650.64 and 7,571.28 is: 10,440.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.12 : 15,650.64 = 7,571.28 : x
  2. Step 2: Convert to fraction form
    11,349.12/15,650.64 = 7,571.28/x
  3. Step 3: Cross multiply
    11,349.12x = 15,650.64 × 7,571.28
  4. Step 4: Simplify right side
    11,349.12x = 118,495,377.62
  5. Step 5: Solve for x
    x = 118,495,377.62/11,349.12
  6. Step 6: Final answer
    x = 10,440.93

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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.