Home / 7,918.36-10,930.74-4,774.12

Finding the Fourth Proportional to 7,918.36, 10,930.74 and 4,774.12

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Solution

The fourth proportional to 7,918.36, 10,930.74 and 4,774.12 is: 6,590.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.36 : 10,930.74 = 4,774.12 : x
  2. Step 2: Convert to fraction form
    7,918.36/10,930.74 = 4,774.12/x
  3. Step 3: Cross multiply
    7,918.36x = 10,930.74 × 4,774.12
  4. Step 4: Simplify right side
    7,918.36x = 52,184,664.45
  5. Step 5: Solve for x
    x = 52,184,664.45/7,918.36
  6. Step 6: Final answer
    x = 6,590.34

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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.