Home / 14,663.94-20,231.37-8,289.72

Finding the Fourth Proportional to 14,663.94, 20,231.37 and 8,289.72

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Solution

The fourth proportional to 14,663.94, 20,231.37 and 8,289.72 is: 11,437.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.94 : 20,231.37 = 8,289.72 : x
  2. Step 2: Convert to fraction form
    14,663.94/20,231.37 = 8,289.72/x
  3. Step 3: Cross multiply
    14,663.94x = 20,231.37 × 8,289.72
  4. Step 4: Simplify right side
    14,663.94x = 167,712,392.52
  5. Step 5: Solve for x
    x = 167,712,392.52/14,663.94
  6. Step 6: Final answer
    x = 11,437.06

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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.