Home / 14,699.28-20,289.28-8,958.80

Finding the Fourth Proportional to 14,699.28, 20,289.28 and 8,958.80

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Solution

The fourth proportional to 14,699.28, 20,289.28 and 8,958.80 is: 12,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,699.28 : 20,289.28 = 8,958.80 : x
  2. Step 2: Convert to fraction form
    14,699.28/20,289.28 = 8,958.80/x
  3. Step 3: Cross multiply
    14,699.28x = 20,289.28 × 8,958.80
  4. Step 4: Simplify right side
    14,699.28x = 181,767,601.66
  5. Step 5: Solve for x
    x = 181,767,601.66/14,699.28
  6. Step 6: Final answer
    x = 12,365.75

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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.