Home / 7,818.48-10,784.82-4,986.33

Finding the Fourth Proportional to 7,818.48, 10,784.82 and 4,986.33

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Solution

The fourth proportional to 7,818.48, 10,784.82 and 4,986.33 is: 6,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.48 : 10,784.82 = 4,986.33 : x
  2. Step 2: Convert to fraction form
    7,818.48/10,784.82 = 4,986.33/x
  3. Step 3: Cross multiply
    7,818.48x = 10,784.82 × 4,986.33
  4. Step 4: Simplify right side
    7,818.48x = 53,776,671.51
  5. Step 5: Solve for x
    x = 53,776,671.51/7,818.48
  6. Step 6: Final answer
    x = 6,878.15

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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.