Home / 10,940.84-15,104.60-7,225.64

Finding the Fourth Proportional to 10,940.84, 15,104.60 and 7,225.64

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Solution

The fourth proportional to 10,940.84, 15,104.60 and 7,225.64 is: 9,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.84 : 15,104.60 = 7,225.64 : x
  2. Step 2: Convert to fraction form
    10,940.84/15,104.60 = 7,225.64/x
  3. Step 3: Cross multiply
    10,940.84x = 15,104.60 × 7,225.64
  4. Step 4: Simplify right side
    10,940.84x = 109,140,401.94
  5. Step 5: Solve for x
    x = 109,140,401.94/10,940.84
  6. Step 6: Final answer
    x = 9,975.50

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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.