Home / 13,417.82-18,516.65-8,384.96

Finding the Fourth Proportional to 13,417.82, 18,516.65 and 8,384.96

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Solution

The fourth proportional to 13,417.82, 18,516.65 and 8,384.96 is: 11,571.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.82 : 18,516.65 = 8,384.96 : x
  2. Step 2: Convert to fraction form
    13,417.82/18,516.65 = 8,384.96/x
  3. Step 3: Cross multiply
    13,417.82x = 18,516.65 × 8,384.96
  4. Step 4: Simplify right side
    13,417.82x = 155,261,235.08
  5. Step 5: Solve for x
    x = 155,261,235.08/13,417.82
  6. Step 6: Final answer
    x = 11,571.28

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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.