Home / 13,324.51-18,389.26-9,961.55

Finding the Fourth Proportional to 13,324.51, 18,389.26 and 9,961.55

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Solution

The fourth proportional to 13,324.51, 18,389.26 and 9,961.55 is: 13,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.51 : 18,389.26 = 9,961.55 : x
  2. Step 2: Convert to fraction form
    13,324.51/18,389.26 = 9,961.55/x
  3. Step 3: Cross multiply
    13,324.51x = 18,389.26 × 9,961.55
  4. Step 4: Simplify right side
    13,324.51x = 183,185,532.95
  5. Step 5: Solve for x
    x = 183,185,532.95/13,324.51
  6. Step 6: Final answer
    x = 13,748.01

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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.