Home / 11,325.29-15,629.67-6,289.72

Finding the Fourth Proportional to 11,325.29, 15,629.67 and 6,289.72

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Solution

The fourth proportional to 11,325.29, 15,629.67 and 6,289.72 is: 8,680.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.29 : 15,629.67 = 6,289.72 : x
  2. Step 2: Convert to fraction form
    11,325.29/15,629.67 = 6,289.72/x
  3. Step 3: Cross multiply
    11,325.29x = 15,629.67 × 6,289.72
  4. Step 4: Simplify right side
    11,325.29x = 98,306,247.99
  5. Step 5: Solve for x
    x = 98,306,247.99/11,325.29
  6. Step 6: Final answer
    x = 8,680.24

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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.