Home / 19,099.02-28,619.22-7,999.63

Finding the Fourth Proportional to 19,099.02, 28,619.22 and 7,999.63

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Solution

The fourth proportional to 19,099.02, 28,619.22 and 7,999.63 is: 11,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.02 : 28,619.22 = 7,999.63 : x
  2. Step 2: Convert to fraction form
    19,099.02/28,619.22 = 7,999.63/x
  3. Step 3: Cross multiply
    19,099.02x = 28,619.22 × 7,999.63
  4. Step 4: Simplify right side
    19,099.02x = 228,943,170.89
  5. Step 5: Solve for x
    x = 228,943,170.89/19,099.02
  6. Step 6: Final answer
    x = 11,987.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.