Home / 11,433.08-15,769.18-8,072.40

Finding the Fourth Proportional to 11,433.08, 15,769.18 and 8,072.40

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Solution

The fourth proportional to 11,433.08, 15,769.18 and 8,072.40 is: 11,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.08 : 15,769.18 = 8,072.40 : x
  2. Step 2: Convert to fraction form
    11,433.08/15,769.18 = 8,072.40/x
  3. Step 3: Cross multiply
    11,433.08x = 15,769.18 × 8,072.40
  4. Step 4: Simplify right side
    11,433.08x = 127,295,128.63
  5. Step 5: Solve for x
    x = 127,295,128.63/11,433.08
  6. Step 6: Final answer
    x = 11,133.93

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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.