Home / 13,182.21-18,191.93-7,516.05

Finding the Fourth Proportional to 13,182.21, 18,191.93 and 7,516.05

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Solution

The fourth proportional to 13,182.21, 18,191.93 and 7,516.05 is: 10,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.21 : 18,191.93 = 7,516.05 : x
  2. Step 2: Convert to fraction form
    13,182.21/18,191.93 = 7,516.05/x
  3. Step 3: Cross multiply
    13,182.21x = 18,191.93 × 7,516.05
  4. Step 4: Simplify right side
    13,182.21x = 136,731,417.90
  5. Step 5: Solve for x
    x = 136,731,417.90/13,182.21
  6. Step 6: Final answer
    x = 10,372.42

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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.