Home / 11,216.70-15,485.67-7,243.74

Finding the Fourth Proportional to 11,216.70, 15,485.67 and 7,243.74

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Solution

The fourth proportional to 11,216.70, 15,485.67 and 7,243.74 is: 10,000.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.70 : 15,485.67 = 7,243.74 : x
  2. Step 2: Convert to fraction form
    11,216.70/15,485.67 = 7,243.74/x
  3. Step 3: Cross multiply
    11,216.70x = 15,485.67 × 7,243.74
  4. Step 4: Simplify right side
    11,216.70x = 112,174,167.21
  5. Step 5: Solve for x
    x = 112,174,167.21/11,216.70
  6. Step 6: Final answer
    x = 10,000.64

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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.