Home / 11,174.93-15,428.61-6,930.50

Finding the Fourth Proportional to 11,174.93, 15,428.61 and 6,930.50

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Solution

The fourth proportional to 11,174.93, 15,428.61 and 6,930.50 is: 9,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.93 : 15,428.61 = 6,930.50 : x
  2. Step 2: Convert to fraction form
    11,174.93/15,428.61 = 6,930.50/x
  3. Step 3: Cross multiply
    11,174.93x = 15,428.61 × 6,930.50
  4. Step 4: Simplify right side
    11,174.93x = 106,927,904.46
  5. Step 5: Solve for x
    x = 106,927,904.46/11,174.93
  6. Step 6: Final answer
    x = 9,568.56

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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.