Home / 14,918.76-20,586.72-8,631.60

Finding the Fourth Proportional to 14,918.76, 20,586.72 and 8,631.60

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Solution

The fourth proportional to 14,918.76, 20,586.72 and 8,631.60 is: 11,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.76 : 20,586.72 = 8,631.60 : x
  2. Step 2: Convert to fraction form
    14,918.76/20,586.72 = 8,631.60/x
  3. Step 3: Cross multiply
    14,918.76x = 20,586.72 × 8,631.60
  4. Step 4: Simplify right side
    14,918.76x = 177,696,332.35
  5. Step 5: Solve for x
    x = 177,696,332.35/14,918.76
  6. Step 6: Final answer
    x = 11,910.93

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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.