Home / 13,497.39-18,618.23-8,709.84

Finding the Fourth Proportional to 13,497.39, 18,618.23 and 8,709.84

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Solution

The fourth proportional to 13,497.39, 18,618.23 and 8,709.84 is: 12,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,497.39 : 18,618.23 = 8,709.84 : x
  2. Step 2: Convert to fraction form
    13,497.39/18,618.23 = 8,709.84/x
  3. Step 3: Cross multiply
    13,497.39x = 18,618.23 × 8,709.84
  4. Step 4: Simplify right side
    13,497.39x = 162,161,804.38
  5. Step 5: Solve for x
    x = 162,161,804.38/13,497.39
  6. Step 6: Final answer
    x = 12,014.31

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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.