Home / 15,239.24-21,031.65-9,578.25

Finding the Fourth Proportional to 15,239.24, 21,031.65 and 9,578.25

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Solution

The fourth proportional to 15,239.24, 21,031.65 and 9,578.25 is: 13,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239.24 : 21,031.65 = 9,578.25 : x
  2. Step 2: Convert to fraction form
    15,239.24/21,031.65 = 9,578.25/x
  3. Step 3: Cross multiply
    15,239.24x = 21,031.65 × 9,578.25
  4. Step 4: Simplify right side
    15,239.24x = 201,446,401.61
  5. Step 5: Solve for x
    x = 201,446,401.61/15,239.24
  6. Step 6: Final answer
    x = 13,218.93

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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.