Home / 13,296.36-18,353.58-8,264.40

Finding the Fourth Proportional to 13,296.36, 18,353.58 and 8,264.40

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Solution

The fourth proportional to 13,296.36, 18,353.58 and 8,264.40 is: 11,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.36 : 18,353.58 = 8,264.40 : x
  2. Step 2: Convert to fraction form
    13,296.36/18,353.58 = 8,264.40/x
  3. Step 3: Cross multiply
    13,296.36x = 18,353.58 × 8,264.40
  4. Step 4: Simplify right side
    13,296.36x = 151,681,326.55
  5. Step 5: Solve for x
    x = 151,681,326.55/13,296.36
  6. Step 6: Final answer
    x = 11,407.73

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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.