Home / 10,858.56-14,971.68-9,177

Finding the Fourth Proportional to 10,858.56, 14,971.68 and 9,177

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Solution

The fourth proportional to 10,858.56, 14,971.68 and 9,177 is: 12,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,858.56 : 14,971.68 = 9,177 : x
  2. Step 2: Convert to fraction form
    10,858.56/14,971.68 = 9,177/x
  3. Step 3: Cross multiply
    10,858.56x = 14,971.68 × 9,177
  4. Step 4: Simplify right side
    10,858.56x = 137,395,107.36
  5. Step 5: Solve for x
    x = 137,395,107.36/10,858.56
  6. Step 6: Final answer
    x = 12,653.16

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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.