Home / 7,854.17-11,782.55-3,641.65

Finding the Fourth Proportional to 7,854.17, 11,782.55 and 3,641.65

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Solution

The fourth proportional to 7,854.17, 11,782.55 and 3,641.65 is: 5,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.17 : 11,782.55 = 3,641.65 : x
  2. Step 2: Convert to fraction form
    7,854.17/11,782.55 = 3,641.65/x
  3. Step 3: Cross multiply
    7,854.17x = 11,782.55 × 3,641.65
  4. Step 4: Simplify right side
    7,854.17x = 42,907,902.86
  5. Step 5: Solve for x
    x = 42,907,902.86/7,854.17
  6. Step 6: Final answer
    x = 5,463.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.