Home / 15,418.68-21,266.88-9,453.24

Finding the Fourth Proportional to 15,418.68, 21,266.88 and 9,453.24

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Solution

The fourth proportional to 15,418.68, 21,266.88 and 9,453.24 is: 13,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.68 : 21,266.88 = 9,453.24 : x
  2. Step 2: Convert to fraction form
    15,418.68/21,266.88 = 9,453.24/x
  3. Step 3: Cross multiply
    15,418.68x = 21,266.88 × 9,453.24
  4. Step 4: Simplify right side
    15,418.68x = 201,040,920.69
  5. Step 5: Solve for x
    x = 201,040,920.69/15,418.68
  6. Step 6: Final answer
    x = 13,038.79

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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.