Home / 19,578.09-29,366.86-4,787.13

Finding the Fourth Proportional to 19,578.09, 29,366.86 and 4,787.13

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Solution

The fourth proportional to 19,578.09, 29,366.86 and 4,787.13 is: 7,180.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.09 : 29,366.86 = 4,787.13 : x
  2. Step 2: Convert to fraction form
    19,578.09/29,366.86 = 4,787.13/x
  3. Step 3: Cross multiply
    19,578.09x = 29,366.86 × 4,787.13
  4. Step 4: Simplify right side
    19,578.09x = 140,582,976.51
  5. Step 5: Solve for x
    x = 140,582,976.51/19,578.09
  6. Step 6: Final answer
    x = 7,180.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.