Home / 10,285.26-14,180.40-8,394.90

Finding the Fourth Proportional to 10,285.26, 14,180.40 and 8,394.90

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Solution

The fourth proportional to 10,285.26, 14,180.40 and 8,394.90 is: 11,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.26 : 14,180.40 = 8,394.90 : x
  2. Step 2: Convert to fraction form
    10,285.26/14,180.40 = 8,394.90/x
  3. Step 3: Cross multiply
    10,285.26x = 14,180.40 × 8,394.90
  4. Step 4: Simplify right side
    10,285.26x = 119,043,039.96
  5. Step 5: Solve for x
    x = 119,043,039.96/10,285.26
  6. Step 6: Final answer
    x = 11,574.14

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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.