Home / 13,970.60-19,273.96-7,999.07

Finding the Fourth Proportional to 13,970.60, 19,273.96 and 7,999.07

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Solution

The fourth proportional to 13,970.60, 19,273.96 and 7,999.07 is: 11,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.60 : 19,273.96 = 7,999.07 : x
  2. Step 2: Convert to fraction form
    13,970.60/19,273.96 = 7,999.07/x
  3. Step 3: Cross multiply
    13,970.60x = 19,273.96 × 7,999.07
  4. Step 4: Simplify right side
    13,970.60x = 154,173,755.22
  5. Step 5: Solve for x
    x = 154,173,755.22/13,970.60
  6. Step 6: Final answer
    x = 11,035.59

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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.