Home / 14,154.45-21,235.31-5,384.58

Finding the Fourth Proportional to 14,154.45, 21,235.31 and 5,384.58

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Solution

The fourth proportional to 14,154.45, 21,235.31 and 5,384.58 is: 8,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.45 : 21,235.31 = 5,384.58 : x
  2. Step 2: Convert to fraction form
    14,154.45/21,235.31 = 5,384.58/x
  3. Step 3: Cross multiply
    14,154.45x = 21,235.31 × 5,384.58
  4. Step 4: Simplify right side
    14,154.45x = 114,343,169.44
  5. Step 5: Solve for x
    x = 114,343,169.44/14,154.45
  6. Step 6: Final answer
    x = 8,078.25

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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.