Home / 15,108.60-20,852.85-9,654.18

Finding the Fourth Proportional to 15,108.60, 20,852.85 and 9,654.18

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Solution

The fourth proportional to 15,108.60, 20,852.85 and 9,654.18 is: 13,324.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.60 : 20,852.85 = 9,654.18 : x
  2. Step 2: Convert to fraction form
    15,108.60/20,852.85 = 9,654.18/x
  3. Step 3: Cross multiply
    15,108.60x = 20,852.85 × 9,654.18
  4. Step 4: Simplify right side
    15,108.60x = 201,317,167.41
  5. Step 5: Solve for x
    x = 201,317,167.41/15,108.60
  6. Step 6: Final answer
    x = 13,324.67

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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.