Home / 14,155.08-21,232.54-4,921

Finding the Fourth Proportional to 14,155.08, 21,232.54 and 4,921

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Solution

The fourth proportional to 14,155.08, 21,232.54 and 4,921 is: 7,381.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.08 : 21,232.54 = 4,921 : x
  2. Step 2: Convert to fraction form
    14,155.08/21,232.54 = 4,921/x
  3. Step 3: Cross multiply
    14,155.08x = 21,232.54 × 4,921
  4. Step 4: Simplify right side
    14,155.08x = 104,485,329.34
  5. Step 5: Solve for x
    x = 104,485,329.34/14,155.08
  6. Step 6: Final answer
    x = 7,381.47

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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.