Home / 14,485.62-21,730.26-5,123.70

Finding the Fourth Proportional to 14,485.62, 21,730.26 and 5,123.70

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Solution

The fourth proportional to 14,485.62, 21,730.26 and 5,123.70 is: 7,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,485.62 : 21,730.26 = 5,123.70 : x
  2. Step 2: Convert to fraction form
    14,485.62/21,730.26 = 5,123.70/x
  3. Step 3: Cross multiply
    14,485.62x = 21,730.26 × 5,123.70
  4. Step 4: Simplify right side
    14,485.62x = 111,339,333.16
  5. Step 5: Solve for x
    x = 111,339,333.16/14,485.62
  6. Step 6: Final answer
    x = 7,686.20

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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.