Home / 13,180.64-19,730.64-9,482.72

Finding the Fourth Proportional to 13,180.64, 19,730.64 and 9,482.72

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Solution

The fourth proportional to 13,180.64, 19,730.64 and 9,482.72 is: 14,195.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.64 : 19,730.64 = 9,482.72 : x
  2. Step 2: Convert to fraction form
    13,180.64/19,730.64 = 9,482.72/x
  3. Step 3: Cross multiply
    13,180.64x = 19,730.64 × 9,482.72
  4. Step 4: Simplify right side
    13,180.64x = 187,100,134.54
  5. Step 5: Solve for x
    x = 187,100,134.54/13,180.64
  6. Step 6: Final answer
    x = 14,195.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.