Home / 13,248.20-18,271.86-11,651.40

Finding the Fourth Proportional to 13,248.20, 18,271.86 and 11,651.40

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Solution

The fourth proportional to 13,248.20, 18,271.86 and 11,651.40 is: 16,069.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.20 : 18,271.86 = 11,651.40 : x
  2. Step 2: Convert to fraction form
    13,248.20/18,271.86 = 11,651.40/x
  3. Step 3: Cross multiply
    13,248.20x = 18,271.86 × 11,651.40
  4. Step 4: Simplify right side
    13,248.20x = 212,892,749.60
  5. Step 5: Solve for x
    x = 212,892,749.60/13,248.20
  6. Step 6: Final answer
    x = 16,069.56

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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.