Home / 15,313.48-21,132.60-8,599.72

Finding the Fourth Proportional to 15,313.48, 21,132.60 and 8,599.72

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Solution

The fourth proportional to 15,313.48, 21,132.60 and 8,599.72 is: 11,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.48 : 21,132.60 = 8,599.72 : x
  2. Step 2: Convert to fraction form
    15,313.48/21,132.60 = 8,599.72/x
  3. Step 3: Cross multiply
    15,313.48x = 21,132.60 × 8,599.72
  4. Step 4: Simplify right side
    15,313.48x = 181,734,442.87
  5. Step 5: Solve for x
    x = 181,734,442.87/15,313.48
  6. Step 6: Final answer
    x = 11,867.61

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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.