Home / 13,124.14-18,132.60-11,695.30

Finding the Fourth Proportional to 13,124.14, 18,132.60 and 11,695.30

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Solution

The fourth proportional to 13,124.14, 18,132.60 and 11,695.30 is: 16,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.14 : 18,132.60 = 11,695.30 : x
  2. Step 2: Convert to fraction form
    13,124.14/18,132.60 = 11,695.30/x
  3. Step 3: Cross multiply
    13,124.14x = 18,132.60 × 11,695.30
  4. Step 4: Simplify right side
    13,124.14x = 212,066,196.78
  5. Step 5: Solve for x
    x = 212,066,196.78/13,124.14
  6. Step 6: Final answer
    x = 16,158.48

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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.