Home / 7,913.24-10,920.35-4,376.51

Finding the Fourth Proportional to 7,913.24, 10,920.35 and 4,376.51

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Solution

The fourth proportional to 7,913.24, 10,920.35 and 4,376.51 is: 6,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.24 : 10,920.35 = 4,376.51 : x
  2. Step 2: Convert to fraction form
    7,913.24/10,920.35 = 4,376.51/x
  3. Step 3: Cross multiply
    7,913.24x = 10,920.35 × 4,376.51
  4. Step 4: Simplify right side
    7,913.24x = 47,793,020.98
  5. Step 5: Solve for x
    x = 47,793,020.98/7,913.24
  6. Step 6: Final answer
    x = 6,039.63

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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.