Home / 15,600.26-21,528.78-9,316.28

Finding the Fourth Proportional to 15,600.26, 21,528.78 and 9,316.28

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Solution

The fourth proportional to 15,600.26, 21,528.78 and 9,316.28 is: 12,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.26 : 21,528.78 = 9,316.28 : x
  2. Step 2: Convert to fraction form
    15,600.26/21,528.78 = 9,316.28/x
  3. Step 3: Cross multiply
    15,600.26x = 21,528.78 × 9,316.28
  4. Step 4: Simplify right side
    15,600.26x = 200,568,142.54
  5. Step 5: Solve for x
    x = 200,568,142.54/15,600.26
  6. Step 6: Final answer
    x = 12,856.72

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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.