Home / 15,239.40-21,032.36-8,525.31

Finding the Fourth Proportional to 15,239.40, 21,032.36 and 8,525.31

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Solution

The fourth proportional to 15,239.40, 21,032.36 and 8,525.31 is: 11,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.40 : 21,032.36 = 8,525.31 : x
  2. Step 2: Convert to fraction form
    15,239.40/21,032.36 = 8,525.31/x
  3. Step 3: Cross multiply
    15,239.40x = 21,032.36 × 8,525.31
  4. Step 4: Simplify right side
    15,239.40x = 179,307,389.03
  5. Step 5: Solve for x
    x = 179,307,389.03/15,239.40
  6. Step 6: Final answer
    x = 11,766.04

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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.