Home / 11,014.36-15,205.74-8,490.94

Finding the Fourth Proportional to 11,014.36, 15,205.74 and 8,490.94

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Solution

The fourth proportional to 11,014.36, 15,205.74 and 8,490.94 is: 11,722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,014.36 : 15,205.74 = 8,490.94 : x
  2. Step 2: Convert to fraction form
    11,014.36/15,205.74 = 8,490.94/x
  3. Step 3: Cross multiply
    11,014.36x = 15,205.74 × 8,490.94
  4. Step 4: Simplify right side
    11,014.36x = 129,111,026.00
  5. Step 5: Solve for x
    x = 129,111,026.00/11,014.36
  6. Step 6: Final answer
    x = 11,722.06

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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.