Home / 11,166.67-15,409.95-6,130.75

Finding the Fourth Proportional to 11,166.67, 15,409.95 and 6,130.75

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Solution

The fourth proportional to 11,166.67, 15,409.95 and 6,130.75 is: 8,460.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.67 : 15,409.95 = 6,130.75 : x
  2. Step 2: Convert to fraction form
    11,166.67/15,409.95 = 6,130.75/x
  3. Step 3: Cross multiply
    11,166.67x = 15,409.95 × 6,130.75
  4. Step 4: Simplify right side
    11,166.67x = 94,474,550.96
  5. Step 5: Solve for x
    x = 94,474,550.96/11,166.67
  6. Step 6: Final answer
    x = 8,460.41

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Half scale
Find fourth proportional to 22,333.34, 30,819.90 and 12,261.50
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.