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Finding the Fourth Proportional to 7,854.95, 10,838.94 and 4,317.95

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Solution

The fourth proportional to 7,854.95, 10,838.94 and 4,317.95 is: 5,958.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.95 : 10,838.94 = 4,317.95 : x
  2. Step 2: Convert to fraction form
    7,854.95/10,838.94 = 4,317.95/x
  3. Step 3: Cross multiply
    7,854.95x = 10,838.94 × 4,317.95
  4. Step 4: Simplify right side
    7,854.95x = 46,802,000.97
  5. Step 5: Solve for x
    x = 46,802,000.97/7,854.95
  6. Step 6: Final answer
    x = 5,958.28

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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.