Home / 7,869.69-10,859.76-4,332.21

Finding the Fourth Proportional to 7,869.69, 10,859.76 and 4,332.21

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Solution

The fourth proportional to 7,869.69, 10,859.76 and 4,332.21 is: 5,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.69 : 10,859.76 = 4,332.21 : x
  2. Step 2: Convert to fraction form
    7,869.69/10,859.76 = 4,332.21/x
  3. Step 3: Cross multiply
    7,869.69x = 10,859.76 × 4,332.21
  4. Step 4: Simplify right side
    7,869.69x = 47,046,760.87
  5. Step 5: Solve for x
    x = 47,046,760.87/7,869.69
  6. Step 6: Final answer
    x = 5,978.22

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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.