Home / 14,206.67-21,315.45-5,442.20

Finding the Fourth Proportional to 14,206.67, 21,315.45 and 5,442.20

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Solution

The fourth proportional to 14,206.67, 21,315.45 and 5,442.20 is: 8,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,206.67 : 21,315.45 = 5,442.20 : x
  2. Step 2: Convert to fraction form
    14,206.67/21,315.45 = 5,442.20/x
  3. Step 3: Cross multiply
    14,206.67x = 21,315.45 × 5,442.20
  4. Step 4: Simplify right side
    14,206.67x = 116,002,941.99
  5. Step 5: Solve for x
    x = 116,002,941.99/14,206.67
  6. Step 6: Final answer
    x = 8,165.39

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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.