Home / 15,358.70-21,194.74-8,644.32

Finding the Fourth Proportional to 15,358.70, 21,194.74 and 8,644.32

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Solution

The fourth proportional to 15,358.70, 21,194.74 and 8,644.32 is: 11,929.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.70 : 21,194.74 = 8,644.32 : x
  2. Step 2: Convert to fraction form
    15,358.70/21,194.74 = 8,644.32/x
  3. Step 3: Cross multiply
    15,358.70x = 21,194.74 × 8,644.32
  4. Step 4: Simplify right side
    15,358.70x = 183,214,114.88
  5. Step 5: Solve for x
    x = 183,214,114.88/15,358.70
  6. Step 6: Final answer
    x = 11,929.01

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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.