Home / 13,161.84-18,162.09-7,193.13

Finding the Fourth Proportional to 13,161.84, 18,162.09 and 7,193.13

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Solution

The fourth proportional to 13,161.84, 18,162.09 and 7,193.13 is: 9,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.84 : 18,162.09 = 7,193.13 : x
  2. Step 2: Convert to fraction form
    13,161.84/18,162.09 = 7,193.13/x
  3. Step 3: Cross multiply
    13,161.84x = 18,162.09 × 7,193.13
  4. Step 4: Simplify right side
    13,161.84x = 130,642,274.44
  5. Step 5: Solve for x
    x = 130,642,274.44/13,161.84
  6. Step 6: Final answer
    x = 9,925.84

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Half scale
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Double scale
Find fourth proportional to 13,162.84, 18,163.47 and 7,194.13
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.