Home / 10,647.46-15,971.96-4,319.30

Finding the Fourth Proportional to 10,647.46, 15,971.96 and 4,319.30

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Solution

The fourth proportional to 10,647.46, 15,971.96 and 4,319.30 is: 6,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.46 : 15,971.96 = 4,319.30 : x
  2. Step 2: Convert to fraction form
    10,647.46/15,971.96 = 4,319.30/x
  3. Step 3: Cross multiply
    10,647.46x = 15,971.96 × 4,319.30
  4. Step 4: Simplify right side
    10,647.46x = 68,987,623.42
  5. Step 5: Solve for x
    x = 68,987,623.42/10,647.46
  6. Step 6: Final answer
    x = 6,479.26

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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.