Home / 12,605.76-18,897.66-5,205.60

Finding the Fourth Proportional to 12,605.76, 18,897.66 and 5,205.60

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Solution

The fourth proportional to 12,605.76, 18,897.66 and 5,205.60 is: 7,803.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.76 : 18,897.66 = 5,205.60 : x
  2. Step 2: Convert to fraction form
    12,605.76/18,897.66 = 5,205.60/x
  3. Step 3: Cross multiply
    12,605.76x = 18,897.66 × 5,205.60
  4. Step 4: Simplify right side
    12,605.76x = 98,373,658.90
  5. Step 5: Solve for x
    x = 98,373,658.90/12,605.76
  6. Step 6: Final answer
    x = 7,803.87

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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.