Home / 13,878.27-19,159.41-9,347.43

Finding the Fourth Proportional to 13,878.27, 19,159.41 and 9,347.43

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Solution

The fourth proportional to 13,878.27, 19,159.41 and 9,347.43 is: 12,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.27 : 19,159.41 = 9,347.43 : x
  2. Step 2: Convert to fraction form
    13,878.27/19,159.41 = 9,347.43/x
  3. Step 3: Cross multiply
    13,878.27x = 19,159.41 × 9,347.43
  4. Step 4: Simplify right side
    13,878.27x = 179,091,243.82
  5. Step 5: Solve for x
    x = 179,091,243.82/13,878.27
  6. Step 6: Final answer
    x = 12,904.44

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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.