Home / 11,710.12-16,160.20-6,405.28

Finding the Fourth Proportional to 11,710.12, 16,160.20 and 6,405.28

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Solution

The fourth proportional to 11,710.12, 16,160.20 and 6,405.28 is: 8,839.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,710.12 : 16,160.20 = 6,405.28 : x
  2. Step 2: Convert to fraction form
    11,710.12/16,160.20 = 6,405.28/x
  3. Step 3: Cross multiply
    11,710.12x = 16,160.20 × 6,405.28
  4. Step 4: Simplify right side
    11,710.12x = 103,510,525.06
  5. Step 5: Solve for x
    x = 103,510,525.06/11,710.12
  6. Step 6: Final answer
    x = 8,839.41

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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.