Home / 10,431.84-15,647.07-4,886.43

Finding the Fourth Proportional to 10,431.84, 15,647.07 and 4,886.43

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Solution

The fourth proportional to 10,431.84, 15,647.07 and 4,886.43 is: 7,329.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.84 : 15,647.07 = 4,886.43 : x
  2. Step 2: Convert to fraction form
    10,431.84/15,647.07 = 4,886.43/x
  3. Step 3: Cross multiply
    10,431.84x = 15,647.07 × 4,886.43
  4. Step 4: Simplify right side
    10,431.84x = 76,458,271.91
  5. Step 5: Solve for x
    x = 76,458,271.91/10,431.84
  6. Step 6: Final answer
    x = 7,329.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.