Home / 15,235.44-21,024.81-8,521.04

Finding the Fourth Proportional to 15,235.44, 21,024.81 and 8,521.04

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Solution

The fourth proportional to 15,235.44, 21,024.81 and 8,521.04 is: 11,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.44 : 21,024.81 = 8,521.04 : x
  2. Step 2: Convert to fraction form
    15,235.44/21,024.81 = 8,521.04/x
  3. Step 3: Cross multiply
    15,235.44x = 21,024.81 × 8,521.04
  4. Step 4: Simplify right side
    15,235.44x = 179,153,141.88
  5. Step 5: Solve for x
    x = 179,153,141.88/15,235.44
  6. Step 6: Final answer
    x = 11,758.97

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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.