Home / 19,056.72-26,287.56-13,458

Finding the Fourth Proportional to 19,056.72, 26,287.56 and 13,458

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Solution

The fourth proportional to 19,056.72, 26,287.56 and 13,458 is: 18,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,056.72 : 26,287.56 = 13,458 : x
  2. Step 2: Convert to fraction form
    19,056.72/26,287.56 = 13,458/x
  3. Step 3: Cross multiply
    19,056.72x = 26,287.56 × 13,458
  4. Step 4: Simplify right side
    19,056.72x = 353,777,982.48
  5. Step 5: Solve for x
    x = 353,777,982.48/19,056.72
  6. Step 6: Final answer
    x = 18,564.47

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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.