Home / 10,908.89-15,054.86-6,435.26

Finding the Fourth Proportional to 10,908.89, 15,054.86 and 6,435.26

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Solution

The fourth proportional to 10,908.89, 15,054.86 and 6,435.26 is: 8,881.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.89 : 15,054.86 = 6,435.26 : x
  2. Step 2: Convert to fraction form
    10,908.89/15,054.86 = 6,435.26/x
  3. Step 3: Cross multiply
    10,908.89x = 15,054.86 × 6,435.26
  4. Step 4: Simplify right side
    10,908.89x = 96,881,906.19
  5. Step 5: Solve for x
    x = 96,881,906.19/10,908.89
  6. Step 6: Final answer
    x = 8,881.00

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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.