Home / 13,239.57-19,859.36-5,345.67

Finding the Fourth Proportional to 13,239.57, 19,859.36 and 5,345.67

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Solution

The fourth proportional to 13,239.57, 19,859.36 and 5,345.67 is: 8,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.57 : 19,859.36 = 5,345.67 : x
  2. Step 2: Convert to fraction form
    13,239.57/19,859.36 = 5,345.67/x
  3. Step 3: Cross multiply
    13,239.57x = 19,859.36 × 5,345.67
  4. Step 4: Simplify right side
    13,239.57x = 106,161,558.24
  5. Step 5: Solve for x
    x = 106,161,558.24/13,239.57
  6. Step 6: Final answer
    x = 8,018.51

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Similar ratio
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1.5x scale

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.