Home / 13,145.50-19,717.53-5,360.86

Finding the Fourth Proportional to 13,145.50, 19,717.53 and 5,360.86

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Solution

The fourth proportional to 13,145.50, 19,717.53 and 5,360.86 is: 8,041.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.50 : 19,717.53 = 5,360.86 : x
  2. Step 2: Convert to fraction form
    13,145.50/19,717.53 = 5,360.86/x
  3. Step 3: Cross multiply
    13,145.50x = 19,717.53 × 5,360.86
  4. Step 4: Simplify right side
    13,145.50x = 105,702,917.88
  5. Step 5: Solve for x
    x = 105,702,917.88/13,145.50
  6. Step 6: Final answer
    x = 8,041.00

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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.