Home / 7,865.67-10,854.63-4,328.81

Finding the Fourth Proportional to 7,865.67, 10,854.63 and 4,328.81

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Solution

The fourth proportional to 7,865.67, 10,854.63 and 4,328.81 is: 5,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.67 : 10,854.63 = 4,328.81 : x
  2. Step 2: Convert to fraction form
    7,865.67/10,854.63 = 4,328.81/x
  3. Step 3: Cross multiply
    7,865.67x = 10,854.63 × 4,328.81
  4. Step 4: Simplify right side
    7,865.67x = 46,987,576.62
  5. Step 5: Solve for x
    x = 46,987,576.62/7,865.67
  6. Step 6: Final answer
    x = 5,973.75

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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.