Home / 15,293.44-21,106.58-8,579.68

Finding the Fourth Proportional to 15,293.44, 21,106.58 and 8,579.68

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Solution

The fourth proportional to 15,293.44, 21,106.58 and 8,579.68 is: 11,840.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.44 : 21,106.58 = 8,579.68 : x
  2. Step 2: Convert to fraction form
    15,293.44/21,106.58 = 8,579.68/x
  3. Step 3: Cross multiply
    15,293.44x = 21,106.58 × 8,579.68
  4. Step 4: Simplify right side
    15,293.44x = 181,087,702.29
  5. Step 5: Solve for x
    x = 181,087,702.29/15,293.44
  6. Step 6: Final answer
    x = 11,840.87

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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.