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Finding the Fourth Proportional to 7,869.59, 10,860.02 and 4,332.81

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Solution

The fourth proportional to 7,869.59, 10,860.02 and 4,332.81 is: 5,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.59 : 10,860.02 = 4,332.81 : x
  2. Step 2: Convert to fraction form
    7,869.59/10,860.02 = 4,332.81/x
  3. Step 3: Cross multiply
    7,869.59x = 10,860.02 × 4,332.81
  4. Step 4: Simplify right side
    7,869.59x = 47,054,401.85
  5. Step 5: Solve for x
    x = 47,054,401.85/7,869.59
  6. Step 6: Final answer
    x = 5,979.27

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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.