Home / 13,418.09-18,510.53-9,441.39

Finding the Fourth Proportional to 13,418.09, 18,510.53 and 9,441.39

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Solution

The fourth proportional to 13,418.09, 18,510.53 and 9,441.39 is: 13,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.09 : 18,510.53 = 9,441.39 : x
  2. Step 2: Convert to fraction form
    13,418.09/18,510.53 = 9,441.39/x
  3. Step 3: Cross multiply
    13,418.09x = 18,510.53 × 9,441.39
  4. Step 4: Simplify right side
    13,418.09x = 174,765,085.63
  5. Step 5: Solve for x
    x = 174,765,085.63/13,418.09
  6. Step 6: Final answer
    x = 13,024.59

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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.