Home / 19,557.73-26,979.69-12,375.51

Finding the Fourth Proportional to 19,557.73, 26,979.69 and 12,375.51

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Solution

The fourth proportional to 19,557.73, 26,979.69 and 12,375.51 is: 17,071.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.73 : 26,979.69 = 12,375.51 : x
  2. Step 2: Convert to fraction form
    19,557.73/26,979.69 = 12,375.51/x
  3. Step 3: Cross multiply
    19,557.73x = 26,979.69 × 12,375.51
  4. Step 4: Simplify right side
    19,557.73x = 333,887,423.39
  5. Step 5: Solve for x
    x = 333,887,423.39/19,557.73
  6. Step 6: Final answer
    x = 17,071.89

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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.