Home / 14,413.19-19,890.51-8,125.57

Finding the Fourth Proportional to 14,413.19, 19,890.51 and 8,125.57

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Solution

The fourth proportional to 14,413.19, 19,890.51 and 8,125.57 is: 11,213.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,413.19 : 19,890.51 = 8,125.57 : x
  2. Step 2: Convert to fraction form
    14,413.19/19,890.51 = 8,125.57/x
  3. Step 3: Cross multiply
    14,413.19x = 19,890.51 × 8,125.57
  4. Step 4: Simplify right side
    14,413.19x = 161,621,731.34
  5. Step 5: Solve for x
    x = 161,621,731.34/14,413.19
  6. Step 6: Final answer
    x = 11,213.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.