Home / 10,112.24-13,946.64-8,490.90

Finding the Fourth Proportional to 10,112.24, 13,946.64 and 8,490.90

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Solution

The fourth proportional to 10,112.24, 13,946.64 and 8,490.90 is: 11,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.24 : 13,946.64 = 8,490.90 : x
  2. Step 2: Convert to fraction form
    10,112.24/13,946.64 = 8,490.90/x
  3. Step 3: Cross multiply
    10,112.24x = 13,946.64 × 8,490.90
  4. Step 4: Simplify right side
    10,112.24x = 118,419,525.58
  5. Step 5: Solve for x
    x = 118,419,525.58/10,112.24
  6. Step 6: Final answer
    x = 11,710.51

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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.