Home / 11,148.05-15,382.36-6,365.81

Finding the Fourth Proportional to 11,148.05, 15,382.36 and 6,365.81

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Solution

The fourth proportional to 11,148.05, 15,382.36 and 6,365.81 is: 8,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.05 : 15,382.36 = 6,365.81 : x
  2. Step 2: Convert to fraction form
    11,148.05/15,382.36 = 6,365.81/x
  3. Step 3: Cross multiply
    11,148.05x = 15,382.36 × 6,365.81
  4. Step 4: Simplify right side
    11,148.05x = 97,921,181.11
  5. Step 5: Solve for x
    x = 97,921,181.11/11,148.05
  6. Step 6: Final answer
    x = 8,783.70

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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.