Home / 13,140.86-19,682.34-10,863.56

Finding the Fourth Proportional to 13,140.86, 19,682.34 and 10,863.56

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Solution

The fourth proportional to 13,140.86, 19,682.34 and 10,863.56 is: 16,271.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.86 : 19,682.34 = 10,863.56 : x
  2. Step 2: Convert to fraction form
    13,140.86/19,682.34 = 10,863.56/x
  3. Step 3: Cross multiply
    13,140.86x = 19,682.34 × 10,863.56
  4. Step 4: Simplify right side
    13,140.86x = 213,820,281.53
  5. Step 5: Solve for x
    x = 213,820,281.53/13,140.86
  6. Step 6: Final answer
    x = 16,271.41

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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.