Home / 14,178.08-21,256.70-4,815.59

Finding the Fourth Proportional to 14,178.08, 21,256.70 and 4,815.59

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Solution

The fourth proportional to 14,178.08, 21,256.70 and 4,815.59 is: 7,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.08 : 21,256.70 = 4,815.59 : x
  2. Step 2: Convert to fraction form
    14,178.08/21,256.70 = 4,815.59/x
  3. Step 3: Cross multiply
    14,178.08x = 21,256.70 × 4,815.59
  4. Step 4: Simplify right side
    14,178.08x = 102,363,421.59
  5. Step 5: Solve for x
    x = 102,363,421.59/14,178.08
  6. Step 6: Final answer
    x = 7,219.84

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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.