Home / 8,489.24-11,710.50-5,130.44

Finding the Fourth Proportional to 8,489.24, 11,710.50 and 5,130.44

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Solution

The fourth proportional to 8,489.24, 11,710.50 and 5,130.44 is: 7,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.24 : 11,710.50 = 5,130.44 : x
  2. Step 2: Convert to fraction form
    8,489.24/11,710.50 = 5,130.44/x
  3. Step 3: Cross multiply
    8,489.24x = 11,710.50 × 5,130.44
  4. Step 4: Simplify right side
    8,489.24x = 60,080,017.62
  5. Step 5: Solve for x
    x = 60,080,017.62/8,489.24
  6. Step 6: Final answer
    x = 7,077.20

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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.