Home / 13,516.56-18,652.82-7,548.21

Finding the Fourth Proportional to 13,516.56, 18,652.82 and 7,548.21

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Solution

The fourth proportional to 13,516.56, 18,652.82 and 7,548.21 is: 10,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.56 : 18,652.82 = 7,548.21 : x
  2. Step 2: Convert to fraction form
    13,516.56/18,652.82 = 7,548.21/x
  3. Step 3: Cross multiply
    13,516.56x = 18,652.82 × 7,548.21
  4. Step 4: Simplify right side
    13,516.56x = 140,795,364.71
  5. Step 5: Solve for x
    x = 140,795,364.71/13,516.56
  6. Step 6: Final answer
    x = 10,416.51

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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.