Home / 19,557.23-26,979-12,375.01

Finding the Fourth Proportional to 19,557.23, 26,979 and 12,375.01

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Solution

The fourth proportional to 19,557.23, 26,979 and 12,375.01 is: 17,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.23 : 26,979 = 12,375.01 : x
  2. Step 2: Convert to fraction form
    19,557.23/26,979 = 12,375.01/x
  3. Step 3: Cross multiply
    19,557.23x = 26,979 × 12,375.01
  4. Step 4: Simplify right side
    19,557.23x = 333,865,259.90
  5. Step 5: Solve for x
    x = 333,865,259.90/19,557.23
  6. Step 6: Final answer
    x = 17,071.19

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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.