Home / 14,283.81-21,424.91-3,894.75

Finding the Fourth Proportional to 14,283.81, 21,424.91 and 3,894.75

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Solution

The fourth proportional to 14,283.81, 21,424.91 and 3,894.75 is: 5,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,283.81 : 21,424.91 = 3,894.75 : x
  2. Step 2: Convert to fraction form
    14,283.81/21,424.91 = 3,894.75/x
  3. Step 3: Cross multiply
    14,283.81x = 21,424.91 × 3,894.75
  4. Step 4: Simplify right side
    14,283.81x = 83,444,648.75
  5. Step 5: Solve for x
    x = 83,444,648.75/14,283.81
  6. Step 6: Final answer
    x = 5,841.90

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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.