Home / 15,334.63-21,162.13-9,369.59

Finding the Fourth Proportional to 15,334.63, 21,162.13 and 9,369.59

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Solution

The fourth proportional to 15,334.63, 21,162.13 and 9,369.59 is: 12,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.63 : 21,162.13 = 9,369.59 : x
  2. Step 2: Convert to fraction form
    15,334.63/21,162.13 = 9,369.59/x
  3. Step 3: Cross multiply
    15,334.63x = 21,162.13 × 9,369.59
  4. Step 4: Simplify right side
    15,334.63x = 198,280,401.92
  5. Step 5: Solve for x
    x = 198,280,401.92/15,334.63
  6. Step 6: Final answer
    x = 12,930.24

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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.