Home / 11,615.28-16,014.08-9,488.56

Finding the Fourth Proportional to 11,615.28, 16,014.08 and 9,488.56

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Solution

The fourth proportional to 11,615.28, 16,014.08 and 9,488.56 is: 13,081.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.28 : 16,014.08 = 9,488.56 : x
  2. Step 2: Convert to fraction form
    11,615.28/16,014.08 = 9,488.56/x
  3. Step 3: Cross multiply
    11,615.28x = 16,014.08 × 9,488.56
  4. Step 4: Simplify right side
    11,615.28x = 151,950,558.92
  5. Step 5: Solve for x
    x = 151,950,558.92/11,615.28
  6. Step 6: Final answer
    x = 13,081.95

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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.