Home / 13,666.20-20,484.68-9,758.76

Finding the Fourth Proportional to 13,666.20, 20,484.68 and 9,758.76

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Solution

The fourth proportional to 13,666.20, 20,484.68 and 9,758.76 is: 14,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.20 : 20,484.68 = 9,758.76 : x
  2. Step 2: Convert to fraction form
    13,666.20/20,484.68 = 9,758.76/x
  3. Step 3: Cross multiply
    13,666.20x = 20,484.68 × 9,758.76
  4. Step 4: Simplify right side
    13,666.20x = 199,905,027.00
  5. Step 5: Solve for x
    x = 199,905,027.00/13,666.20
  6. Step 6: Final answer
    x = 14,627.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.