Home / 9,072.24-12,513.28-8,328.64

Finding the Fourth Proportional to 9,072.24, 12,513.28 and 8,328.64

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Solution

The fourth proportional to 9,072.24, 12,513.28 and 8,328.64 is: 11,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072.24 : 12,513.28 = 8,328.64 : x
  2. Step 2: Convert to fraction form
    9,072.24/12,513.28 = 8,328.64/x
  3. Step 3: Cross multiply
    9,072.24x = 12,513.28 × 8,328.64
  4. Step 4: Simplify right side
    9,072.24x = 104,218,604.34
  5. Step 5: Solve for x
    x = 104,218,604.34/9,072.24
  6. Step 6: Final answer
    x = 11,487.64

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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.