Home / 15,235.42-21,024.82-8,521.02

Finding the Fourth Proportional to 15,235.42, 21,024.82 and 8,521.02

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Solution

The fourth proportional to 15,235.42, 21,024.82 and 8,521.02 is: 11,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.42 : 21,024.82 = 8,521.02 : x
  2. Step 2: Convert to fraction form
    15,235.42/21,024.82 = 8,521.02/x
  3. Step 3: Cross multiply
    15,235.42x = 21,024.82 × 8,521.02
  4. Step 4: Simplify right side
    15,235.42x = 179,152,911.72
  5. Step 5: Solve for x
    x = 179,152,911.72/15,235.42
  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.