Home / 9,164.19-12,646.63-5,185.22

Finding the Fourth Proportional to 9,164.19, 12,646.63 and 5,185.22

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Solution

The fourth proportional to 9,164.19, 12,646.63 and 5,185.22 is: 7,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,164.19 : 12,646.63 = 5,185.22 : x
  2. Step 2: Convert to fraction form
    9,164.19/12,646.63 = 5,185.22/x
  3. Step 3: Cross multiply
    9,164.19x = 12,646.63 × 5,185.22
  4. Step 4: Simplify right side
    9,164.19x = 65,575,558.81
  5. Step 5: Solve for x
    x = 65,575,558.81/9,164.19
  6. Step 6: Final answer
    x = 7,155.63

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Half scale
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Double scale
Find fourth proportional to 9,165.19, 12,648.01 and 5,186.22
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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.