Home / 15,256.36-21,051.36-8,542.28

Finding the Fourth Proportional to 15,256.36, 21,051.36 and 8,542.28

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Solution

The fourth proportional to 15,256.36, 21,051.36 and 8,542.28 is: 11,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.36 : 21,051.36 = 8,542.28 : x
  2. Step 2: Convert to fraction form
    15,256.36/21,051.36 = 8,542.28/x
  3. Step 3: Cross multiply
    15,256.36x = 21,051.36 × 8,542.28
  4. Step 4: Simplify right side
    15,256.36x = 179,826,611.50
  5. Step 5: Solve for x
    x = 179,826,611.50/15,256.36
  6. Step 6: Final answer
    x = 11,786.99

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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.