Home / 9,917.13-13,684.77-5,667.35

Finding the Fourth Proportional to 9,917.13, 13,684.77 and 5,667.35

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Solution

The fourth proportional to 9,917.13, 13,684.77 and 5,667.35 is: 7,820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.13 : 13,684.77 = 5,667.35 : x
  2. Step 2: Convert to fraction form
    9,917.13/13,684.77 = 5,667.35/x
  3. Step 3: Cross multiply
    9,917.13x = 13,684.77 × 5,667.35
  4. Step 4: Simplify right side
    9,917.13x = 77,556,312.84
  5. Step 5: Solve for x
    x = 77,556,312.84/9,917.13
  6. Step 6: Final answer
    x = 7,820.44

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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.