Home / 13,377.36-18,455.80-8,664.24

Finding the Fourth Proportional to 13,377.36, 18,455.80 and 8,664.24

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Solution

The fourth proportional to 13,377.36, 18,455.80 and 8,664.24 is: 11,953.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.36 : 18,455.80 = 8,664.24 : x
  2. Step 2: Convert to fraction form
    13,377.36/18,455.80 = 8,664.24/x
  3. Step 3: Cross multiply
    13,377.36x = 18,455.80 × 8,664.24
  4. Step 4: Simplify right side
    13,377.36x = 159,905,480.59
  5. Step 5: Solve for x
    x = 159,905,480.59/13,377.36
  6. Step 6: Final answer
    x = 11,953.44

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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.