Home / 8,142.18-11,235.87-4,605.45

Finding the Fourth Proportional to 8,142.18, 11,235.87 and 4,605.45

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Solution

The fourth proportional to 8,142.18, 11,235.87 and 4,605.45 is: 6,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.18 : 11,235.87 = 4,605.45 : x
  2. Step 2: Convert to fraction form
    8,142.18/11,235.87 = 4,605.45/x
  3. Step 3: Cross multiply
    8,142.18x = 11,235.87 × 4,605.45
  4. Step 4: Simplify right side
    8,142.18x = 51,746,237.49
  5. Step 5: Solve for x
    x = 51,746,237.49/8,142.18
  6. Step 6: Final answer
    x = 6,355.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.