Home / 15,653.84-21,603.19-9,284.21

Finding the Fourth Proportional to 15,653.84, 21,603.19 and 9,284.21

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Solution

The fourth proportional to 15,653.84, 21,603.19 and 9,284.21 is: 12,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.84 : 21,603.19 = 9,284.21 : x
  2. Step 2: Convert to fraction form
    15,653.84/21,603.19 = 9,284.21/x
  3. Step 3: Cross multiply
    15,653.84x = 21,603.19 × 9,284.21
  4. Step 4: Simplify right side
    15,653.84x = 200,568,421.40
  5. Step 5: Solve for x
    x = 200,568,421.40/15,653.84
  6. Step 6: Final answer
    x = 12,812.73

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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.