Home / 13,802.87-19,050.44-8,137.28

Finding the Fourth Proportional to 13,802.87, 19,050.44 and 8,137.28

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Solution

The fourth proportional to 13,802.87, 19,050.44 and 8,137.28 is: 11,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,802.87 : 19,050.44 = 8,137.28 : x
  2. Step 2: Convert to fraction form
    13,802.87/19,050.44 = 8,137.28/x
  3. Step 3: Cross multiply
    13,802.87x = 19,050.44 × 8,137.28
  4. Step 4: Simplify right side
    13,802.87x = 155,018,764.40
  5. Step 5: Solve for x
    x = 155,018,764.40/13,802.87
  6. Step 6: Final answer
    x = 11,230.91

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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.