Home / 13,147.83-19,721.39-4,382.91

Finding the Fourth Proportional to 13,147.83, 19,721.39 and 4,382.91

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Solution

The fourth proportional to 13,147.83, 19,721.39 and 4,382.91 is: 6,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.83 : 19,721.39 = 4,382.91 : x
  2. Step 2: Convert to fraction form
    13,147.83/19,721.39 = 4,382.91/x
  3. Step 3: Cross multiply
    13,147.83x = 19,721.39 × 4,382.91
  4. Step 4: Simplify right side
    13,147.83x = 86,437,055.53
  5. Step 5: Solve for x
    x = 86,437,055.53/13,147.83
  6. Step 6: Final answer
    x = 6,574.24

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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.