Home / 9,431.10-14,139.90-4,747.77

Finding the Fourth Proportional to 9,431.10, 14,139.90 and 4,747.77

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Solution

The fourth proportional to 9,431.10, 14,139.90 and 4,747.77 is: 7,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.10 : 14,139.90 = 4,747.77 : x
  2. Step 2: Convert to fraction form
    9,431.10/14,139.90 = 4,747.77/x
  3. Step 3: Cross multiply
    9,431.10x = 14,139.90 × 4,747.77
  4. Step 4: Simplify right side
    9,431.10x = 67,132,993.02
  5. Step 5: Solve for x
    x = 67,132,993.02/9,431.10
  6. Step 6: Final answer
    x = 7,118.26

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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.