Home / 14,386.60-21,571.10-5,611.40

Finding the Fourth Proportional to 14,386.60, 21,571.10 and 5,611.40

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Solution

The fourth proportional to 14,386.60, 21,571.10 and 5,611.40 is: 8,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.60 : 21,571.10 = 5,611.40 : x
  2. Step 2: Convert to fraction form
    14,386.60/21,571.10 = 5,611.40/x
  3. Step 3: Cross multiply
    14,386.60x = 21,571.10 × 5,611.40
  4. Step 4: Simplify right side
    14,386.60x = 121,044,070.54
  5. Step 5: Solve for x
    x = 121,044,070.54/14,386.60
  6. Step 6: Final answer
    x = 8,413.67

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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.