Home / 11,420.56-17,130.66-6,158.02

Finding the Fourth Proportional to 11,420.56, 17,130.66 and 6,158.02

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Solution

The fourth proportional to 11,420.56, 17,130.66 and 6,158.02 is: 9,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.56 : 17,130.66 = 6,158.02 : x
  2. Step 2: Convert to fraction form
    11,420.56/17,130.66 = 6,158.02/x
  3. Step 3: Cross multiply
    11,420.56x = 17,130.66 × 6,158.02
  4. Step 4: Simplify right side
    11,420.56x = 105,490,946.89
  5. Step 5: Solve for x
    x = 105,490,946.89/11,420.56
  6. Step 6: Final answer
    x = 9,236.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.