Home / 13,541.86-20,208.20-12,302.56

Finding the Fourth Proportional to 13,541.86, 20,208.20 and 12,302.56

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Solution

The fourth proportional to 13,541.86, 20,208.20 and 12,302.56 is: 18,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.86 : 20,208.20 = 12,302.56 : x
  2. Step 2: Convert to fraction form
    13,541.86/20,208.20 = 12,302.56/x
  3. Step 3: Cross multiply
    13,541.86x = 20,208.20 × 12,302.56
  4. Step 4: Simplify right side
    13,541.86x = 248,612,592.99
  5. Step 5: Solve for x
    x = 248,612,592.99/13,541.86
  6. Step 6: Final answer
    x = 18,358.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.