Home / 11,124.95-15,350.91-6,647.75

Finding the Fourth Proportional to 11,124.95, 15,350.91 and 6,647.75

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Solution

The fourth proportional to 11,124.95, 15,350.91 and 6,647.75 is: 9,172.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.95 : 15,350.91 = 6,647.75 : x
  2. Step 2: Convert to fraction form
    11,124.95/15,350.91 = 6,647.75/x
  3. Step 3: Cross multiply
    11,124.95x = 15,350.91 × 6,647.75
  4. Step 4: Simplify right side
    11,124.95x = 102,049,011.95
  5. Step 5: Solve for x
    x = 102,049,011.95/11,124.95
  6. Step 6: Final answer
    x = 9,172.99

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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.