Home / 15,239.63-21,031.49-8,525.37

Finding the Fourth Proportional to 15,239.63, 21,031.49 and 8,525.37

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Solution

The fourth proportional to 15,239.63, 21,031.49 and 8,525.37 is: 11,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.63 : 21,031.49 = 8,525.37 : x
  2. Step 2: Convert to fraction form
    15,239.63/21,031.49 = 8,525.37/x
  3. Step 3: Cross multiply
    15,239.63x = 21,031.49 × 8,525.37
  4. Step 4: Simplify right side
    15,239.63x = 179,301,302.11
  5. Step 5: Solve for x
    x = 179,301,302.11/15,239.63
  6. Step 6: Final answer
    x = 11,765.46

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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.