Home / 9,309.14-12,840.93-5,529.74

Finding the Fourth Proportional to 9,309.14, 12,840.93 and 5,529.74

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Solution

The fourth proportional to 9,309.14, 12,840.93 and 5,529.74 is: 7,627.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.14 : 12,840.93 = 5,529.74 : x
  2. Step 2: Convert to fraction form
    9,309.14/12,840.93 = 5,529.74/x
  3. Step 3: Cross multiply
    9,309.14x = 12,840.93 × 5,529.74
  4. Step 4: Simplify right side
    9,309.14x = 71,006,940.05
  5. Step 5: Solve for x
    x = 71,006,940.05/9,309.14
  6. Step 6: Final answer
    x = 7,627.66

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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.