Home / 11,918.28-16,454.47-9,260.67

Finding the Fourth Proportional to 11,918.28, 16,454.47 and 9,260.67

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Solution

The fourth proportional to 11,918.28, 16,454.47 and 9,260.67 is: 12,785.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.28 : 16,454.47 = 9,260.67 : x
  2. Step 2: Convert to fraction form
    11,918.28/16,454.47 = 9,260.67/x
  3. Step 3: Cross multiply
    11,918.28x = 16,454.47 × 9,260.67
  4. Step 4: Simplify right side
    11,918.28x = 152,379,416.69
  5. Step 5: Solve for x
    x = 152,379,416.69/11,918.28
  6. Step 6: Final answer
    x = 12,785.35

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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.