Home / 9,328.04-12,869.58-6,338.72

Finding the Fourth Proportional to 9,328.04, 12,869.58 and 6,338.72

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Solution

The fourth proportional to 9,328.04, 12,869.58 and 6,338.72 is: 8,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.04 : 12,869.58 = 6,338.72 : x
  2. Step 2: Convert to fraction form
    9,328.04/12,869.58 = 6,338.72/x
  3. Step 3: Cross multiply
    9,328.04x = 12,869.58 × 6,338.72
  4. Step 4: Simplify right side
    9,328.04x = 81,576,664.14
  5. Step 5: Solve for x
    x = 81,576,664.14/9,328.04
  6. Step 6: Final answer
    x = 8,745.32

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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.