Home / 13,174.08-18,180.74-7,509.72

Finding the Fourth Proportional to 13,174.08, 18,180.74 and 7,509.72

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Solution

The fourth proportional to 13,174.08, 18,180.74 and 7,509.72 is: 10,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.08 : 18,180.74 = 7,509.72 : x
  2. Step 2: Convert to fraction form
    13,174.08/18,180.74 = 7,509.72/x
  3. Step 3: Cross multiply
    13,174.08x = 18,180.74 × 7,509.72
  4. Step 4: Simplify right side
    13,174.08x = 136,532,229.24
  5. Step 5: Solve for x
    x = 136,532,229.24/13,174.08
  6. Step 6: Final answer
    x = 10,363.70

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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.