Home / 8,646.40-11,932.48-5,108.80

Finding the Fourth Proportional to 8,646.40, 11,932.48 and 5,108.80

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Solution

The fourth proportional to 8,646.40, 11,932.48 and 5,108.80 is: 7,050.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.40 : 11,932.48 = 5,108.80 : x
  2. Step 2: Convert to fraction form
    8,646.40/11,932.48 = 5,108.80/x
  3. Step 3: Cross multiply
    8,646.40x = 11,932.48 × 5,108.80
  4. Step 4: Simplify right side
    8,646.40x = 60,960,653.82
  5. Step 5: Solve for x
    x = 60,960,653.82/8,646.40
  6. Step 6: Final answer
    x = 7,050.41

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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.