Home / 7,813.70-10,785.17-4,458.35

Finding the Fourth Proportional to 7,813.70, 10,785.17 and 4,458.35

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Solution

The fourth proportional to 7,813.70, 10,785.17 and 4,458.35 is: 6,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.70 : 10,785.17 = 4,458.35 : x
  2. Step 2: Convert to fraction form
    7,813.70/10,785.17 = 4,458.35/x
  3. Step 3: Cross multiply
    7,813.70x = 10,785.17 × 4,458.35
  4. Step 4: Simplify right side
    7,813.70x = 48,084,019.89
  5. Step 5: Solve for x
    x = 48,084,019.89/7,813.70
  6. Step 6: Final answer
    x = 6,153.81

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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.