Home / 19,139.63-26,413.56-10,642.62

Finding the Fourth Proportional to 19,139.63, 26,413.56 and 10,642.62

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Solution

The fourth proportional to 19,139.63, 26,413.56 and 10,642.62 is: 14,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.63 : 26,413.56 = 10,642.62 : x
  2. Step 2: Convert to fraction form
    19,139.63/26,413.56 = 10,642.62/x
  3. Step 3: Cross multiply
    19,139.63x = 26,413.56 × 10,642.62
  4. Step 4: Simplify right side
    19,139.63x = 281,109,349.86
  5. Step 5: Solve for x
    x = 281,109,349.86/19,139.63
  6. Step 6: Final answer
    x = 14,687.30

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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.