Home / 9,186.31-12,679.97-5,409.17

Finding the Fourth Proportional to 9,186.31, 12,679.97 and 5,409.17

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Solution

The fourth proportional to 9,186.31, 12,679.97 and 5,409.17 is: 7,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.31 : 12,679.97 = 5,409.17 : x
  2. Step 2: Convert to fraction form
    9,186.31/12,679.97 = 5,409.17/x
  3. Step 3: Cross multiply
    9,186.31x = 12,679.97 × 5,409.17
  4. Step 4: Simplify right side
    9,186.31x = 68,588,113.32
  5. Step 5: Solve for x
    x = 68,588,113.32/9,186.31
  6. Step 6: Final answer
    x = 7,466.34

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Half scale
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Double scale
Find fourth proportional to 9,187.31, 12,681.35 and 5,410.17
Similar ratio
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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.