Home / 19,140.19-26,413.38-10,642.05

Finding the Fourth Proportional to 19,140.19, 26,413.38 and 10,642.05

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Solution

The fourth proportional to 19,140.19, 26,413.38 and 10,642.05 is: 14,685.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.19 : 26,413.38 = 10,642.05 : x
  2. Step 2: Convert to fraction form
    19,140.19/26,413.38 = 10,642.05/x
  3. Step 3: Cross multiply
    19,140.19x = 26,413.38 × 10,642.05
  4. Step 4: Simplify right side
    19,140.19x = 281,092,510.63
  5. Step 5: Solve for x
    x = 281,092,510.63/19,140.19
  6. Step 6: Final answer
    x = 14,685.99

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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.