Home / 15,513.27-21,401.46-9,222

Finding the Fourth Proportional to 15,513.27, 21,401.46 and 9,222

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Solution

The fourth proportional to 15,513.27, 21,401.46 and 9,222 is: 12,722.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513.27 : 21,401.46 = 9,222 : x
  2. Step 2: Convert to fraction form
    15,513.27/21,401.46 = 9,222/x
  3. Step 3: Cross multiply
    15,513.27x = 21,401.46 × 9,222
  4. Step 4: Simplify right side
    15,513.27x = 197,364,264.12
  5. Step 5: Solve for x
    x = 197,364,264.12/15,513.27
  6. Step 6: Final answer
    x = 12,722.29

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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.