Home / 10,821.28-14,933.40-5,853.28

Finding the Fourth Proportional to 10,821.28, 14,933.40 and 5,853.28

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Solution

The fourth proportional to 10,821.28, 14,933.40 and 5,853.28 is: 8,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.28 : 14,933.40 = 5,853.28 : x
  2. Step 2: Convert to fraction form
    10,821.28/14,933.40 = 5,853.28/x
  3. Step 3: Cross multiply
    10,821.28x = 14,933.40 × 5,853.28
  4. Step 4: Simplify right side
    10,821.28x = 87,409,371.55
  5. Step 5: Solve for x
    x = 87,409,371.55/10,821.28
  6. Step 6: Final answer
    x = 8,077.54

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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.