Home / 13,296.12-18,348.08-8,509.32

Finding the Fourth Proportional to 13,296.12, 18,348.08 and 8,509.32

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Solution

The fourth proportional to 13,296.12, 18,348.08 and 8,509.32 is: 11,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.12 : 18,348.08 = 8,509.32 : x
  2. Step 2: Convert to fraction form
    13,296.12/18,348.08 = 8,509.32/x
  3. Step 3: Cross multiply
    13,296.12x = 18,348.08 × 8,509.32
  4. Step 4: Simplify right side
    13,296.12x = 156,129,684.11
  5. Step 5: Solve for x
    x = 156,129,684.11/13,296.12
  6. Step 6: Final answer
    x = 11,742.50

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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.