Home / 9,789.48-13,499.64-8,709.41

Finding the Fourth Proportional to 9,789.48, 13,499.64 and 8,709.41

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Solution

The fourth proportional to 9,789.48, 13,499.64 and 8,709.41 is: 12,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.48 : 13,499.64 = 8,709.41 : x
  2. Step 2: Convert to fraction form
    9,789.48/13,499.64 = 8,709.41/x
  3. Step 3: Cross multiply
    9,789.48x = 13,499.64 × 8,709.41
  4. Step 4: Simplify right side
    9,789.48x = 117,573,832.11
  5. Step 5: Solve for x
    x = 117,573,832.11/9,789.48
  6. Step 6: Final answer
    x = 12,010.22

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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.