Home / 12,762.69-19,143.87-4,442.55

Finding the Fourth Proportional to 12,762.69, 19,143.87 and 4,442.55

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Solution

The fourth proportional to 12,762.69, 19,143.87 and 4,442.55 is: 6,663.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.69 : 19,143.87 = 4,442.55 : x
  2. Step 2: Convert to fraction form
    12,762.69/19,143.87 = 4,442.55/x
  3. Step 3: Cross multiply
    12,762.69x = 19,143.87 × 4,442.55
  4. Step 4: Simplify right side
    12,762.69x = 85,047,599.67
  5. Step 5: Solve for x
    x = 85,047,599.67/12,762.69
  6. Step 6: Final answer
    x = 6,663.77

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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.