Home / 11,124.90-15,351.03-6,647.63

Finding the Fourth Proportional to 11,124.90, 15,351.03 and 6,647.63

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Solution

The fourth proportional to 11,124.90, 15,351.03 and 6,647.63 is: 9,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.90 : 15,351.03 = 6,647.63 : x
  2. Step 2: Convert to fraction form
    11,124.90/15,351.03 = 6,647.63/x
  3. Step 3: Cross multiply
    11,124.90x = 15,351.03 × 6,647.63
  4. Step 4: Simplify right side
    11,124.90x = 102,047,890.80
  5. Step 5: Solve for x
    x = 102,047,890.80/11,124.90
  6. Step 6: Final answer
    x = 9,172.93

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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.