Home / 7,854.20-10,838.72-4,317.47

Finding the Fourth Proportional to 7,854.20, 10,838.72 and 4,317.47

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Solution

The fourth proportional to 7,854.20, 10,838.72 and 4,317.47 is: 5,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.20 : 10,838.72 = 4,317.47 : x
  2. Step 2: Convert to fraction form
    7,854.20/10,838.72 = 4,317.47/x
  3. Step 3: Cross multiply
    7,854.20x = 10,838.72 × 4,317.47
  4. Step 4: Simplify right side
    7,854.20x = 46,795,848.44
  5. Step 5: Solve for x
    x = 46,795,848.44/7,854.20
  6. Step 6: Final answer
    x = 5,958.07

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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.