Home / 13,396.08-18,493.95-9,153.51

Finding the Fourth Proportional to 13,396.08, 18,493.95 and 9,153.51

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Solution

The fourth proportional to 13,396.08, 18,493.95 and 9,153.51 is: 12,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.08 : 18,493.95 = 9,153.51 : x
  2. Step 2: Convert to fraction form
    13,396.08/18,493.95 = 9,153.51/x
  3. Step 3: Cross multiply
    13,396.08x = 18,493.95 × 9,153.51
  4. Step 4: Simplify right side
    13,396.08x = 169,284,556.26
  5. Step 5: Solve for x
    x = 169,284,556.26/13,396.08
  6. Step 6: Final answer
    x = 12,636.87

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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.