Home / 12,858.09-19,289.54-5,838.59

Finding the Fourth Proportional to 12,858.09, 19,289.54 and 5,838.59

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Solution

The fourth proportional to 12,858.09, 19,289.54 and 5,838.59 is: 8,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.09 : 19,289.54 = 5,838.59 : x
  2. Step 2: Convert to fraction form
    12,858.09/19,289.54 = 5,838.59/x
  3. Step 3: Cross multiply
    12,858.09x = 19,289.54 × 5,838.59
  4. Step 4: Simplify right side
    12,858.09x = 112,623,715.35
  5. Step 5: Solve for x
    x = 112,623,715.35/12,858.09
  6. Step 6: Final answer
    x = 8,758.98

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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.