Home / 18,509.64-25,551.48-12,136.36

Finding the Fourth Proportional to 18,509.64, 25,551.48 and 12,136.36

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Solution

The fourth proportional to 18,509.64, 25,551.48 and 12,136.36 is: 16,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.64 : 25,551.48 = 12,136.36 : x
  2. Step 2: Convert to fraction form
    18,509.64/25,551.48 = 12,136.36/x
  3. Step 3: Cross multiply
    18,509.64x = 25,551.48 × 12,136.36
  4. Step 4: Simplify right side
    18,509.64x = 310,101,959.81
  5. Step 5: Solve for x
    x = 310,101,959.81/18,509.64
  6. Step 6: Final answer
    x = 16,753.54

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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.