Home / 9,767.10-13,477.81-5,518.54

Finding the Fourth Proportional to 9,767.10, 13,477.81 and 5,518.54

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Solution

The fourth proportional to 9,767.10, 13,477.81 and 5,518.54 is: 7,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.10 : 13,477.81 = 5,518.54 : x
  2. Step 2: Convert to fraction form
    9,767.10/13,477.81 = 5,518.54/x
  3. Step 3: Cross multiply
    9,767.10x = 13,477.81 × 5,518.54
  4. Step 4: Simplify right side
    9,767.10x = 74,377,786.11
  5. Step 5: Solve for x
    x = 74,377,786.11/9,767.10
  6. Step 6: Final answer
    x = 7,615.13

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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.