Home / 14,413.72-19,888.64-8,124.88

Finding the Fourth Proportional to 14,413.72, 19,888.64 and 8,124.88

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Solution

The fourth proportional to 14,413.72, 19,888.64 and 8,124.88 is: 11,211.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,413.72 : 19,888.64 = 8,124.88 : x
  2. Step 2: Convert to fraction form
    14,413.72/19,888.64 = 8,124.88/x
  3. Step 3: Cross multiply
    14,413.72x = 19,888.64 × 8,124.88
  4. Step 4: Simplify right side
    14,413.72x = 161,592,713.92
  5. Step 5: Solve for x
    x = 161,592,713.92/14,413.72
  6. Step 6: Final answer
    x = 11,211.04

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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.