Home / 7,913.49-10,920.31-4,376.76

Finding the Fourth Proportional to 7,913.49, 10,920.31 and 4,376.76

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Solution

The fourth proportional to 7,913.49, 10,920.31 and 4,376.76 is: 6,039.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.49 : 10,920.31 = 4,376.76 : x
  2. Step 2: Convert to fraction form
    7,913.49/10,920.31 = 4,376.76/x
  3. Step 3: Cross multiply
    7,913.49x = 10,920.31 × 4,376.76
  4. Step 4: Simplify right side
    7,913.49x = 47,795,576.00
  5. Step 5: Solve for x
    x = 47,795,576.00/7,913.49
  6. Step 6: Final answer
    x = 6,039.76

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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.