Home / 13,529.90-18,654.18-8,741.74

Finding the Fourth Proportional to 13,529.90, 18,654.18 and 8,741.74

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Solution

The fourth proportional to 13,529.90, 18,654.18 and 8,741.74 is: 12,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.90 : 18,654.18 = 8,741.74 : x
  2. Step 2: Convert to fraction form
    13,529.90/18,654.18 = 8,741.74/x
  3. Step 3: Cross multiply
    13,529.90x = 18,654.18 × 8,741.74
  4. Step 4: Simplify right side
    13,529.90x = 163,069,898.20
  5. Step 5: Solve for x
    x = 163,069,898.20/13,529.90
  6. Step 6: Final answer
    x = 12,052.56

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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.