Home / 14,079.78-19,430.01-8,112.60

Finding the Fourth Proportional to 14,079.78, 19,430.01 and 8,112.60

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Solution

The fourth proportional to 14,079.78, 19,430.01 and 8,112.60 is: 11,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.78 : 19,430.01 = 8,112.60 : x
  2. Step 2: Convert to fraction form
    14,079.78/19,430.01 = 8,112.60/x
  3. Step 3: Cross multiply
    14,079.78x = 19,430.01 × 8,112.60
  4. Step 4: Simplify right side
    14,079.78x = 157,627,899.13
  5. Step 5: Solve for x
    x = 157,627,899.13/14,079.78
  6. Step 6: Final answer
    x = 11,195.34

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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.