Home / 7,869.80-10,860.39-4,333.07

Finding the Fourth Proportional to 7,869.80, 10,860.39 and 4,333.07

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Solution

The fourth proportional to 7,869.80, 10,860.39 and 4,333.07 is: 5,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.80 : 10,860.39 = 4,333.07 : x
  2. Step 2: Convert to fraction form
    7,869.80/10,860.39 = 4,333.07/x
  3. Step 3: Cross multiply
    7,869.80x = 10,860.39 × 4,333.07
  4. Step 4: Simplify right side
    7,869.80x = 47,058,830.10
  5. Step 5: Solve for x
    x = 47,058,830.10/7,869.80
  6. Step 6: Final answer
    x = 5,979.67

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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.