Home / 15,574.28-21,491.83-8,858.96

Finding the Fourth Proportional to 15,574.28, 21,491.83 and 8,858.96

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Solution

The fourth proportional to 15,574.28, 21,491.83 and 8,858.96 is: 12,224.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574.28 : 21,491.83 = 8,858.96 : x
  2. Step 2: Convert to fraction form
    15,574.28/21,491.83 = 8,858.96/x
  3. Step 3: Cross multiply
    15,574.28x = 21,491.83 × 8,858.96
  4. Step 4: Simplify right side
    15,574.28x = 190,395,262.30
  5. Step 5: Solve for x
    x = 190,395,262.30/15,574.28
  6. Step 6: Final answer
    x = 12,224.98

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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.