Home / 16,689.44-23,031.36-9,135.80

Finding the Fourth Proportional to 16,689.44, 23,031.36 and 9,135.80

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Solution

The fourth proportional to 16,689.44, 23,031.36 and 9,135.80 is: 12,607.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.44 : 23,031.36 = 9,135.80 : x
  2. Step 2: Convert to fraction form
    16,689.44/23,031.36 = 9,135.80/x
  3. Step 3: Cross multiply
    16,689.44x = 23,031.36 × 9,135.80
  4. Step 4: Simplify right side
    16,689.44x = 210,409,898.69
  5. Step 5: Solve for x
    x = 210,409,898.69/16,689.44
  6. Step 6: Final answer
    x = 12,607.37

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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.