Home / 9,329.22-12,870.23-6,138.41

Finding the Fourth Proportional to 9,329.22, 12,870.23 and 6,138.41

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Solution

The fourth proportional to 9,329.22, 12,870.23 and 6,138.41 is: 8,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.22 : 12,870.23 = 6,138.41 : x
  2. Step 2: Convert to fraction form
    9,329.22/12,870.23 = 6,138.41/x
  3. Step 3: Cross multiply
    9,329.22x = 12,870.23 × 6,138.41
  4. Step 4: Simplify right side
    9,329.22x = 79,002,748.53
  5. Step 5: Solve for x
    x = 79,002,748.53/9,329.22
  6. Step 6: Final answer
    x = 8,468.31

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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.