Home / 14,490.26-19,989.50-9,119.36

Finding the Fourth Proportional to 14,490.26, 19,989.50 and 9,119.36

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Solution

The fourth proportional to 14,490.26, 19,989.50 and 9,119.36 is: 12,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.26 : 19,989.50 = 9,119.36 : x
  2. Step 2: Convert to fraction form
    14,490.26/19,989.50 = 9,119.36/x
  3. Step 3: Cross multiply
    14,490.26x = 19,989.50 × 9,119.36
  4. Step 4: Simplify right side
    14,490.26x = 182,291,446.72
  5. Step 5: Solve for x
    x = 182,291,446.72/14,490.26
  6. Step 6: Final answer
    x = 12,580.27

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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.