Home / 13,538.20-20,307.06-6,960.52

Finding the Fourth Proportional to 13,538.20, 20,307.06 and 6,960.52

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Solution

The fourth proportional to 13,538.20, 20,307.06 and 6,960.52 is: 10,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.20 : 20,307.06 = 6,960.52 : x
  2. Step 2: Convert to fraction form
    13,538.20/20,307.06 = 6,960.52/x
  3. Step 3: Cross multiply
    13,538.20x = 20,307.06 × 6,960.52
  4. Step 4: Simplify right side
    13,538.20x = 141,347,697.27
  5. Step 5: Solve for x
    x = 141,347,697.27/13,538.20
  6. Step 6: Final answer
    x = 10,440.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.