Home / 13,592.76-18,748.53-13,135.55

Finding the Fourth Proportional to 13,592.76, 18,748.53 and 13,135.55

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Solution

The fourth proportional to 13,592.76, 18,748.53 and 13,135.55 is: 18,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.76 : 18,748.53 = 13,135.55 : x
  2. Step 2: Convert to fraction form
    13,592.76/18,748.53 = 13,135.55/x
  3. Step 3: Cross multiply
    13,592.76x = 18,748.53 × 13,135.55
  4. Step 4: Simplify right side
    13,592.76x = 246,272,264.96
  5. Step 5: Solve for x
    x = 246,272,264.96/13,592.76
  6. Step 6: Final answer
    x = 18,117.90

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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.