Home / 15,177.51-20,943.09-8,462.75

Finding the Fourth Proportional to 15,177.51, 20,943.09 and 8,462.75

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Solution

The fourth proportional to 15,177.51, 20,943.09 and 8,462.75 is: 11,677.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.51 : 20,943.09 = 8,462.75 : x
  2. Step 2: Convert to fraction form
    15,177.51/20,943.09 = 8,462.75/x
  3. Step 3: Cross multiply
    15,177.51x = 20,943.09 × 8,462.75
  4. Step 4: Simplify right side
    15,177.51x = 177,236,030.18
  5. Step 5: Solve for x
    x = 177,236,030.18/15,177.51
  6. Step 6: Final answer
    x = 11,677.54

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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.