Home / 14,977.18-20,668.40-8,263.09

Finding the Fourth Proportional to 14,977.18, 20,668.40 and 8,263.09

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Solution

The fourth proportional to 14,977.18, 20,668.40 and 8,263.09 is: 11,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,977.18 : 20,668.40 = 8,263.09 : x
  2. Step 2: Convert to fraction form
    14,977.18/20,668.40 = 8,263.09/x
  3. Step 3: Cross multiply
    14,977.18x = 20,668.40 × 8,263.09
  4. Step 4: Simplify right side
    14,977.18x = 170,784,704.70
  5. Step 5: Solve for x
    x = 170,784,704.70/14,977.18
  6. Step 6: Final answer
    x = 11,403.00

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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.