Home / 11,541.72-15,919.02-7,351.32

Finding the Fourth Proportional to 11,541.72, 15,919.02 and 7,351.32

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Solution

The fourth proportional to 11,541.72, 15,919.02 and 7,351.32 is: 10,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,541.72 : 15,919.02 = 7,351.32 : x
  2. Step 2: Convert to fraction form
    11,541.72/15,919.02 = 7,351.32/x
  3. Step 3: Cross multiply
    11,541.72x = 15,919.02 × 7,351.32
  4. Step 4: Simplify right side
    11,541.72x = 117,025,810.11
  5. Step 5: Solve for x
    x = 117,025,810.11/11,541.72
  6. Step 6: Final answer
    x = 10,139.37

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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.