Home / 7,854.56-11,767.99-4,148.63

Finding the Fourth Proportional to 7,854.56, 11,767.99 and 4,148.63

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Solution

The fourth proportional to 7,854.56, 11,767.99 and 4,148.63 is: 6,215.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.56 : 11,767.99 = 4,148.63 : x
  2. Step 2: Convert to fraction form
    7,854.56/11,767.99 = 4,148.63/x
  3. Step 3: Cross multiply
    7,854.56x = 11,767.99 × 4,148.63
  4. Step 4: Simplify right side
    7,854.56x = 48,821,036.35
  5. Step 5: Solve for x
    x = 48,821,036.35/7,854.56
  6. Step 6: Final answer
    x = 6,215.63

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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.