Home / 15,889.41-21,928.37-9,176.26

Finding the Fourth Proportional to 15,889.41, 21,928.37 and 9,176.26

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Solution

The fourth proportional to 15,889.41, 21,928.37 and 9,176.26 is: 12,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.41 : 21,928.37 = 9,176.26 : x
  2. Step 2: Convert to fraction form
    15,889.41/21,928.37 = 9,176.26/x
  3. Step 3: Cross multiply
    15,889.41x = 21,928.37 × 9,176.26
  4. Step 4: Simplify right side
    15,889.41x = 201,220,424.50
  5. Step 5: Solve for x
    x = 201,220,424.50/15,889.41
  6. Step 6: Final answer
    x = 12,663.81

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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.