Home / 19,165.56-28,749.76-5,125.26

Finding the Fourth Proportional to 19,165.56, 28,749.76 and 5,125.26

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Solution

The fourth proportional to 19,165.56, 28,749.76 and 5,125.26 is: 7,688.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.56 : 28,749.76 = 5,125.26 : x
  2. Step 2: Convert to fraction form
    19,165.56/28,749.76 = 5,125.26/x
  3. Step 3: Cross multiply
    19,165.56x = 28,749.76 × 5,125.26
  4. Step 4: Simplify right side
    19,165.56x = 147,349,994.94
  5. Step 5: Solve for x
    x = 147,349,994.94/19,165.56
  6. Step 6: Final answer
    x = 7,688.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.