Home / 10,431.72-15,647.65-3,506.22

Finding the Fourth Proportional to 10,431.72, 15,647.65 and 3,506.22

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Solution

The fourth proportional to 10,431.72, 15,647.65 and 3,506.22 is: 5,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.72 : 15,647.65 = 3,506.22 : x
  2. Step 2: Convert to fraction form
    10,431.72/15,647.65 = 3,506.22/x
  3. Step 3: Cross multiply
    10,431.72x = 15,647.65 × 3,506.22
  4. Step 4: Simplify right side
    10,431.72x = 54,864,094.62
  5. Step 5: Solve for x
    x = 54,864,094.62/10,431.72
  6. Step 6: Final answer
    x = 5,259.35

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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.