Home / 7,913.57-10,920.54-4,376.71

Finding the Fourth Proportional to 7,913.57, 10,920.54 and 4,376.71

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Solution

The fourth proportional to 7,913.57, 10,920.54 and 4,376.71 is: 6,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.57 : 10,920.54 = 4,376.71 : x
  2. Step 2: Convert to fraction form
    7,913.57/10,920.54 = 4,376.71/x
  3. Step 3: Cross multiply
    7,913.57x = 10,920.54 × 4,376.71
  4. Step 4: Simplify right side
    7,913.57x = 47,796,025.73
  5. Step 5: Solve for x
    x = 47,796,025.73/7,913.57
  6. Step 6: Final answer
    x = 6,039.75

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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.