Home / 7,785.12-10,743.52-4,641.36

Finding the Fourth Proportional to 7,785.12, 10,743.52 and 4,641.36

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Solution

The fourth proportional to 7,785.12, 10,743.52 and 4,641.36 is: 6,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.12 : 10,743.52 = 4,641.36 : x
  2. Step 2: Convert to fraction form
    7,785.12/10,743.52 = 4,641.36/x
  3. Step 3: Cross multiply
    7,785.12x = 10,743.52 × 4,641.36
  4. Step 4: Simplify right side
    7,785.12x = 49,864,543.99
  5. Step 5: Solve for x
    x = 49,864,543.99/7,785.12
  6. Step 6: Final answer
    x = 6,405.11

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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.