Home / 14,485.23-19,987.97-8,111.34

Finding the Fourth Proportional to 14,485.23, 19,987.97 and 8,111.34

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Solution

The fourth proportional to 14,485.23, 19,987.97 and 8,111.34 is: 11,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.23 : 19,987.97 = 8,111.34 : x
  2. Step 2: Convert to fraction form
    14,485.23/19,987.97 = 8,111.34/x
  3. Step 3: Cross multiply
    14,485.23x = 19,987.97 × 8,111.34
  4. Step 4: Simplify right side
    14,485.23x = 162,129,180.02
  5. Step 5: Solve for x
    x = 162,129,180.02/14,485.23
  6. Step 6: Final answer
    x = 11,192.72

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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.