Home / 11,055.34-15,253.68-7,705.18

Finding the Fourth Proportional to 11,055.34, 15,253.68 and 7,705.18

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Solution

The fourth proportional to 11,055.34, 15,253.68 and 7,705.18 is: 10,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.34 : 15,253.68 = 7,705.18 : x
  2. Step 2: Convert to fraction form
    11,055.34/15,253.68 = 7,705.18/x
  3. Step 3: Cross multiply
    11,055.34x = 15,253.68 × 7,705.18
  4. Step 4: Simplify right side
    11,055.34x = 117,532,350.06
  5. Step 5: Solve for x
    x = 117,532,350.06/11,055.34
  6. Step 6: Final answer
    x = 10,631.27

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Half scale
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Double scale
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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.