Home / 11,124.74-15,351.44-6,647.06

Finding the Fourth Proportional to 11,124.74, 15,351.44 and 6,647.06

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Solution

The fourth proportional to 11,124.74, 15,351.44 and 6,647.06 is: 9,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.74 : 15,351.44 = 6,647.06 : x
  2. Step 2: Convert to fraction form
    11,124.74/15,351.44 = 6,647.06/x
  3. Step 3: Cross multiply
    11,124.74x = 15,351.44 × 6,647.06
  4. Step 4: Simplify right side
    11,124.74x = 102,041,942.77
  5. Step 5: Solve for x
    x = 102,041,942.77/11,124.74
  6. Step 6: Final answer
    x = 9,172.52

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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.