Home / 10,356.66-14,292.35-5,640.94

Finding the Fourth Proportional to 10,356.66, 14,292.35 and 5,640.94

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Solution

The fourth proportional to 10,356.66, 14,292.35 and 5,640.94 is: 7,784.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,356.66 : 14,292.35 = 5,640.94 : x
  2. Step 2: Convert to fraction form
    10,356.66/14,292.35 = 5,640.94/x
  3. Step 3: Cross multiply
    10,356.66x = 14,292.35 × 5,640.94
  4. Step 4: Simplify right side
    10,356.66x = 80,622,299.62
  5. Step 5: Solve for x
    x = 80,622,299.62/10,356.66
  6. Step 6: Final answer
    x = 7,784.58

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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.