Home / 14,070.36-19,420.32-8,105.48

Finding the Fourth Proportional to 14,070.36, 19,420.32 and 8,105.48

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Solution

The fourth proportional to 14,070.36, 19,420.32 and 8,105.48 is: 11,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.36 : 19,420.32 = 8,105.48 : x
  2. Step 2: Convert to fraction form
    14,070.36/19,420.32 = 8,105.48/x
  3. Step 3: Cross multiply
    14,070.36x = 19,420.32 × 8,105.48
  4. Step 4: Simplify right side
    14,070.36x = 157,411,015.35
  5. Step 5: Solve for x
    x = 157,411,015.35/14,070.36
  6. Step 6: Final answer
    x = 11,187.42

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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.