Home / 18,560.32-25,647.14-13,515.72

Finding the Fourth Proportional to 18,560.32, 25,647.14 and 13,515.72

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Solution

The fourth proportional to 18,560.32, 25,647.14 and 13,515.72 is: 18,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.32 : 25,647.14 = 13,515.72 : x
  2. Step 2: Convert to fraction form
    18,560.32/25,647.14 = 13,515.72/x
  3. Step 3: Cross multiply
    18,560.32x = 25,647.14 × 13,515.72
  4. Step 4: Simplify right side
    18,560.32x = 346,639,563.04
  5. Step 5: Solve for x
    x = 346,639,563.04/18,560.32
  6. Step 6: Final answer
    x = 18,676.38

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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.