Home / 15,877.72-21,901.26-10,288.36

Finding the Fourth Proportional to 15,877.72, 21,901.26 and 10,288.36

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Solution

The fourth proportional to 15,877.72, 21,901.26 and 10,288.36 is: 14,191.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.72 : 21,901.26 = 10,288.36 : x
  2. Step 2: Convert to fraction form
    15,877.72/21,901.26 = 10,288.36/x
  3. Step 3: Cross multiply
    15,877.72x = 21,901.26 × 10,288.36
  4. Step 4: Simplify right side
    15,877.72x = 225,328,047.33
  5. Step 5: Solve for x
    x = 225,328,047.33/15,877.72
  6. Step 6: Final answer
    x = 14,191.46

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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.