Home / 13,007.69-19,511.58-3,146.95

Finding the Fourth Proportional to 13,007.69, 19,511.58 and 3,146.95

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Solution

The fourth proportional to 13,007.69, 19,511.58 and 3,146.95 is: 4,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007.69 : 19,511.58 = 3,146.95 : x
  2. Step 2: Convert to fraction form
    13,007.69/19,511.58 = 3,146.95/x
  3. Step 3: Cross multiply
    13,007.69x = 19,511.58 × 3,146.95
  4. Step 4: Simplify right side
    13,007.69x = 61,402,002.87
  5. Step 5: Solve for x
    x = 61,402,002.87/13,007.69
  6. Step 6: Final answer
    x = 4,720.44

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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.