Home / 14,958.78-20,643.60-8,586.54

Finding the Fourth Proportional to 14,958.78, 20,643.60 and 8,586.54

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Solution

The fourth proportional to 14,958.78, 20,643.60 and 8,586.54 is: 11,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,958.78 : 20,643.60 = 8,586.54 : x
  2. Step 2: Convert to fraction form
    14,958.78/20,643.60 = 8,586.54/x
  3. Step 3: Cross multiply
    14,958.78x = 20,643.60 × 8,586.54
  4. Step 4: Simplify right side
    14,958.78x = 177,257,129.34
  5. Step 5: Solve for x
    x = 177,257,129.34/14,958.78
  6. Step 6: Final answer
    x = 11,849.70

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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.