Home / 7,815.48-10,785.66-4,458.84

Finding the Fourth Proportional to 7,815.48, 10,785.66 and 4,458.84

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Solution

The fourth proportional to 7,815.48, 10,785.66 and 4,458.84 is: 6,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.48 : 10,785.66 = 4,458.84 : x
  2. Step 2: Convert to fraction form
    7,815.48/10,785.66 = 4,458.84/x
  3. Step 3: Cross multiply
    7,815.48x = 10,785.66 × 4,458.84
  4. Step 4: Simplify right side
    7,815.48x = 48,091,532.23
  5. Step 5: Solve for x
    x = 48,091,532.23/7,815.48
  6. Step 6: Final answer
    x = 6,153.37

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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.