Home / 15,240.83-21,032.12-8,526.42

Finding the Fourth Proportional to 15,240.83, 21,032.12 and 8,526.42

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Solution

The fourth proportional to 15,240.83, 21,032.12 and 8,526.42 is: 11,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.83 : 21,032.12 = 8,526.42 : x
  2. Step 2: Convert to fraction form
    15,240.83/21,032.12 = 8,526.42/x
  3. Step 3: Cross multiply
    15,240.83x = 21,032.12 × 8,526.42
  4. Step 4: Simplify right side
    15,240.83x = 179,328,709.93
  5. Step 5: Solve for x
    x = 179,328,709.93/15,240.83
  6. Step 6: Final answer
    x = 11,766.34

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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.