Home / 11,142.36-15,376.64-6,106.48

Finding the Fourth Proportional to 11,142.36, 15,376.64 and 6,106.48

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Solution

The fourth proportional to 11,142.36, 15,376.64 and 6,106.48 is: 8,427.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.36 : 15,376.64 = 6,106.48 : x
  2. Step 2: Convert to fraction form
    11,142.36/15,376.64 = 6,106.48/x
  3. Step 3: Cross multiply
    11,142.36x = 15,376.64 × 6,106.48
  4. Step 4: Simplify right side
    11,142.36x = 93,897,144.63
  5. Step 5: Solve for x
    x = 93,897,144.63/11,142.36
  6. Step 6: Final answer
    x = 8,427.04

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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.