Home / 13,442.78-20,163.94-4,677.50

Finding the Fourth Proportional to 13,442.78, 20,163.94 and 4,677.50

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Solution

The fourth proportional to 13,442.78, 20,163.94 and 4,677.50 is: 7,016.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.78 : 20,163.94 = 4,677.50 : x
  2. Step 2: Convert to fraction form
    13,442.78/20,163.94 = 4,677.50/x
  3. Step 3: Cross multiply
    13,442.78x = 20,163.94 × 4,677.50
  4. Step 4: Simplify right side
    13,442.78x = 94,316,868.07
  5. Step 5: Solve for x
    x = 94,316,868.07/13,442.78
  6. Step 6: Final answer
    x = 7,016.17

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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.