Home / 7,813.30-10,780.68-4,627.59

Finding the Fourth Proportional to 7,813.30, 10,780.68 and 4,627.59

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Solution

The fourth proportional to 7,813.30, 10,780.68 and 4,627.59 is: 6,385.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.30 : 10,780.68 = 4,627.59 : x
  2. Step 2: Convert to fraction form
    7,813.30/10,780.68 = 4,627.59/x
  3. Step 3: Cross multiply
    7,813.30x = 10,780.68 × 4,627.59
  4. Step 4: Simplify right side
    7,813.30x = 49,888,566.96
  5. Step 5: Solve for x
    x = 49,888,566.96/7,813.30
  6. Step 6: Final answer
    x = 6,385.08

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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.