Home / 19,557.64-26,979.59-12,375.47

Finding the Fourth Proportional to 19,557.64, 26,979.59 and 12,375.47

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Solution

The fourth proportional to 19,557.64, 26,979.59 and 12,375.47 is: 17,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.64 : 26,979.59 = 12,375.47 : x
  2. Step 2: Convert to fraction form
    19,557.64/26,979.59 = 12,375.47/x
  3. Step 3: Cross multiply
    19,557.64x = 26,979.59 × 12,375.47
  4. Step 4: Simplify right side
    19,557.64x = 333,885,106.66
  5. Step 5: Solve for x
    x = 333,885,106.66/19,557.64
  6. Step 6: Final answer
    x = 17,071.85

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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.