Home / 19,139.99-26,413.29-10,642.91

Finding the Fourth Proportional to 19,139.99, 26,413.29 and 10,642.91

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Solution

The fourth proportional to 19,139.99, 26,413.29 and 10,642.91 is: 14,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.99 : 26,413.29 = 10,642.91 : x
  2. Step 2: Convert to fraction form
    19,139.99/26,413.29 = 10,642.91/x
  3. Step 3: Cross multiply
    19,139.99x = 26,413.29 × 10,642.91
  4. Step 4: Simplify right side
    19,139.99x = 281,114,136.21
  5. Step 5: Solve for x
    x = 281,114,136.21/19,139.99
  6. Step 6: Final answer
    x = 14,687.27

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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.