Home / 11,526.89-15,906.95-6,491.60

Finding the Fourth Proportional to 11,526.89, 15,906.95 and 6,491.60

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Solution

The fourth proportional to 11,526.89, 15,906.95 and 6,491.60 is: 8,958.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,526.89 : 15,906.95 = 6,491.60 : x
  2. Step 2: Convert to fraction form
    11,526.89/15,906.95 = 6,491.60/x
  3. Step 3: Cross multiply
    11,526.89x = 15,906.95 × 6,491.60
  4. Step 4: Simplify right side
    11,526.89x = 103,261,444.63
  5. Step 5: Solve for x
    x = 103,261,444.63/11,526.89
  6. Step 6: Final answer
    x = 8,958.31

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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.