Home / 7,162.13-9,881.72-4,644.35

Finding the Fourth Proportional to 7,162.13, 9,881.72 and 4,644.35

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Solution

The fourth proportional to 7,162.13, 9,881.72 and 4,644.35 is: 6,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.13 : 9,881.72 = 4,644.35 : x
  2. Step 2: Convert to fraction form
    7,162.13/9,881.72 = 4,644.35/x
  3. Step 3: Cross multiply
    7,162.13x = 9,881.72 × 4,644.35
  4. Step 4: Simplify right side
    7,162.13x = 45,894,093.65
  5. Step 5: Solve for x
    x = 45,894,093.65/7,162.13
  6. Step 6: Final answer
    x = 6,407.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.