Home / 7,331.72-11,001.72-3,436.16

Finding the Fourth Proportional to 7,331.72, 11,001.72 and 3,436.16

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Solution

The fourth proportional to 7,331.72, 11,001.72 and 3,436.16 is: 5,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.72 : 11,001.72 = 3,436.16 : x
  2. Step 2: Convert to fraction form
    7,331.72/11,001.72 = 3,436.16/x
  3. Step 3: Cross multiply
    7,331.72x = 11,001.72 × 3,436.16
  4. Step 4: Simplify right side
    7,331.72x = 37,803,670.20
  5. Step 5: Solve for x
    x = 37,803,670.20/7,331.72
  6. Step 6: Final answer
    x = 5,156.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.