Home / 12,835.87-19,256.54-5,440.16

Finding the Fourth Proportional to 12,835.87, 19,256.54 and 5,440.16

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Solution

The fourth proportional to 12,835.87, 19,256.54 and 5,440.16 is: 8,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.87 : 19,256.54 = 5,440.16 : x
  2. Step 2: Convert to fraction form
    12,835.87/19,256.54 = 5,440.16/x
  3. Step 3: Cross multiply
    12,835.87x = 19,256.54 × 5,440.16
  4. Step 4: Simplify right side
    12,835.87x = 104,758,679.59
  5. Step 5: Solve for x
    x = 104,758,679.59/12,835.87
  6. Step 6: Final answer
    x = 8,161.40

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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.