Home / 15,216.16-20,998.74-8,501.56

Finding the Fourth Proportional to 15,216.16, 20,998.74 and 8,501.56

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Solution

The fourth proportional to 15,216.16, 20,998.74 and 8,501.56 is: 11,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.16 : 20,998.74 = 8,501.56 : x
  2. Step 2: Convert to fraction form
    15,216.16/20,998.74 = 8,501.56/x
  3. Step 3: Cross multiply
    15,216.16x = 20,998.74 × 8,501.56
  4. Step 4: Simplify right side
    15,216.16x = 178,522,048.03
  5. Step 5: Solve for x
    x = 178,522,048.03/15,216.16
  6. Step 6: Final answer
    x = 11,732.40

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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.