Home / 8,542.90-11,785.02-5,710.96

Finding the Fourth Proportional to 8,542.90, 11,785.02 and 5,710.96

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Solution

The fourth proportional to 8,542.90, 11,785.02 and 5,710.96 is: 7,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.90 : 11,785.02 = 5,710.96 : x
  2. Step 2: Convert to fraction form
    8,542.90/11,785.02 = 5,710.96/x
  3. Step 3: Cross multiply
    8,542.90x = 11,785.02 × 5,710.96
  4. Step 4: Simplify right side
    8,542.90x = 67,303,777.82
  5. Step 5: Solve for x
    x = 67,303,777.82/8,542.90
  6. Step 6: Final answer
    x = 7,878.33

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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.