Home / 7,913.06-10,920.24-4,376.49

Finding the Fourth Proportional to 7,913.06, 10,920.24 and 4,376.49

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Solution

The fourth proportional to 7,913.06, 10,920.24 and 4,376.49 is: 6,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.06 : 10,920.24 = 4,376.49 : x
  2. Step 2: Convert to fraction form
    7,913.06/10,920.24 = 4,376.49/x
  3. Step 3: Cross multiply
    7,913.06x = 10,920.24 × 4,376.49
  4. Step 4: Simplify right side
    7,913.06x = 47,792,299.28
  5. Step 5: Solve for x
    x = 47,792,299.28/7,913.06
  6. Step 6: Final answer
    x = 6,039.68

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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.