Home / 10,421.93-15,629.25-6,467.10

Finding the Fourth Proportional to 10,421.93, 15,629.25 and 6,467.10

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Solution

The fourth proportional to 10,421.93, 15,629.25 and 6,467.10 is: 9,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.93 : 15,629.25 = 6,467.10 : x
  2. Step 2: Convert to fraction form
    10,421.93/15,629.25 = 6,467.10/x
  3. Step 3: Cross multiply
    10,421.93x = 15,629.25 × 6,467.10
  4. Step 4: Simplify right side
    10,421.93x = 101,075,922.68
  5. Step 5: Solve for x
    x = 101,075,922.68/10,421.93
  6. Step 6: Final answer
    x = 9,698.39

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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.