Home / 7,146.56-10,722-4,815.92

Finding the Fourth Proportional to 7,146.56, 10,722 and 4,815.92

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Solution

The fourth proportional to 7,146.56, 10,722 and 4,815.92 is: 7,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.56 : 10,722 = 4,815.92 : x
  2. Step 2: Convert to fraction form
    7,146.56/10,722 = 4,815.92/x
  3. Step 3: Cross multiply
    7,146.56x = 10,722 × 4,815.92
  4. Step 4: Simplify right side
    7,146.56x = 51,636,294.24
  5. Step 5: Solve for x
    x = 51,636,294.24/7,146.56
  6. Step 6: Final answer
    x = 7,225.34

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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.