Home / 8,137.87-11,231.45-5,153.98

Finding the Fourth Proportional to 8,137.87, 11,231.45 and 5,153.98

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Solution

The fourth proportional to 8,137.87, 11,231.45 and 5,153.98 is: 7,113.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.87 : 11,231.45 = 5,153.98 : x
  2. Step 2: Convert to fraction form
    8,137.87/11,231.45 = 5,153.98/x
  3. Step 3: Cross multiply
    8,137.87x = 11,231.45 × 5,153.98
  4. Step 4: Simplify right side
    8,137.87x = 57,886,612.51
  5. Step 5: Solve for x
    x = 57,886,612.51/8,137.87
  6. Step 6: Final answer
    x = 7,113.24

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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.