Home / 7,839.57-10,823.66-5,190.55

Finding the Fourth Proportional to 7,839.57, 10,823.66 and 5,190.55

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Solution

The fourth proportional to 7,839.57, 10,823.66 and 5,190.55 is: 7,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.57 : 10,823.66 = 5,190.55 : x
  2. Step 2: Convert to fraction form
    7,839.57/10,823.66 = 5,190.55/x
  3. Step 3: Cross multiply
    7,839.57x = 10,823.66 × 5,190.55
  4. Step 4: Simplify right side
    7,839.57x = 56,180,748.41
  5. Step 5: Solve for x
    x = 56,180,748.41/7,839.57
  6. Step 6: Final answer
    x = 7,166.30

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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.