Home / 15,106.17-20,846.07-8,391.63

Finding the Fourth Proportional to 15,106.17, 20,846.07 and 8,391.63

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Solution

The fourth proportional to 15,106.17, 20,846.07 and 8,391.63 is: 11,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.17 : 20,846.07 = 8,391.63 : x
  2. Step 2: Convert to fraction form
    15,106.17/20,846.07 = 8,391.63/x
  3. Step 3: Cross multiply
    15,106.17x = 20,846.07 × 8,391.63
  4. Step 4: Simplify right side
    15,106.17x = 174,932,506.39
  5. Step 5: Solve for x
    x = 174,932,506.39/15,106.17
  6. Step 6: Final answer
    x = 11,580.20

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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.