Home / 7,854.11-10,838.86-4,317.40

Finding the Fourth Proportional to 7,854.11, 10,838.86 and 4,317.40

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Solution

The fourth proportional to 7,854.11, 10,838.86 and 4,317.40 is: 5,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.11 : 10,838.86 = 4,317.40 : x
  2. Step 2: Convert to fraction form
    7,854.11/10,838.86 = 4,317.40/x
  3. Step 3: Cross multiply
    7,854.11x = 10,838.86 × 4,317.40
  4. Step 4: Simplify right side
    7,854.11x = 46,795,721.20
  5. Step 5: Solve for x
    x = 46,795,721.20/7,854.11
  6. Step 6: Final answer
    x = 5,958.12

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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.