Home / 15,406.27-21,260.60-8,332.68

Finding the Fourth Proportional to 15,406.27, 21,260.60 and 8,332.68

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Solution

The fourth proportional to 15,406.27, 21,260.60 and 8,332.68 is: 11,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.27 : 21,260.60 = 8,332.68 : x
  2. Step 2: Convert to fraction form
    15,406.27/21,260.60 = 8,332.68/x
  3. Step 3: Cross multiply
    15,406.27x = 21,260.60 × 8,332.68
  4. Step 4: Simplify right side
    15,406.27x = 177,157,845.72
  5. Step 5: Solve for x
    x = 177,157,845.72/15,406.27
  6. Step 6: Final answer
    x = 11,499.08

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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.