Home / 12,280.36-18,407.58-6,658.96

Finding the Fourth Proportional to 12,280.36, 18,407.58 and 6,658.96

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Solution

The fourth proportional to 12,280.36, 18,407.58 and 6,658.96 is: 9,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.36 : 18,407.58 = 6,658.96 : x
  2. Step 2: Convert to fraction form
    12,280.36/18,407.58 = 6,658.96/x
  3. Step 3: Cross multiply
    12,280.36x = 18,407.58 × 6,658.96
  4. Step 4: Simplify right side
    12,280.36x = 122,575,338.92
  5. Step 5: Solve for x
    x = 122,575,338.92/12,280.36
  6. Step 6: Final answer
    x = 9,981.41

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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.