Home / 15,236.16-21,023.80-8,521.44

Finding the Fourth Proportional to 15,236.16, 21,023.80 and 8,521.44

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Solution

The fourth proportional to 15,236.16, 21,023.80 and 8,521.44 is: 11,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,236.16 : 21,023.80 = 8,521.44 : x
  2. Step 2: Convert to fraction form
    15,236.16/21,023.80 = 8,521.44/x
  3. Step 3: Cross multiply
    15,236.16x = 21,023.80 × 8,521.44
  4. Step 4: Simplify right side
    15,236.16x = 179,153,050.27
  5. Step 5: Solve for x
    x = 179,153,050.27/15,236.16
  6. Step 6: Final answer
    x = 11,758.41

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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.