Home / 19,876.81-27,413.57-13,492.91

Finding the Fourth Proportional to 19,876.81, 27,413.57 and 13,492.91

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Solution

The fourth proportional to 19,876.81, 27,413.57 and 13,492.91 is: 18,609.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.81 : 27,413.57 = 13,492.91 : x
  2. Step 2: Convert to fraction form
    19,876.81/27,413.57 = 13,492.91/x
  3. Step 3: Cross multiply
    19,876.81x = 27,413.57 × 13,492.91
  4. Step 4: Simplify right side
    19,876.81x = 369,888,832.79
  5. Step 5: Solve for x
    x = 369,888,832.79/19,876.81
  6. Step 6: Final answer
    x = 18,609.06

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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.