Home / 14,640.35-20,206.40-8,352.72

Finding the Fourth Proportional to 14,640.35, 20,206.40 and 8,352.72

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Solution

The fourth proportional to 14,640.35, 20,206.40 and 8,352.72 is: 11,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.35 : 20,206.40 = 8,352.72 : x
  2. Step 2: Convert to fraction form
    14,640.35/20,206.40 = 8,352.72/x
  3. Step 3: Cross multiply
    14,640.35x = 20,206.40 × 8,352.72
  4. Step 4: Simplify right side
    14,640.35x = 168,778,359.64
  5. Step 5: Solve for x
    x = 168,778,359.64/14,640.35
  6. Step 6: Final answer
    x = 11,528.30

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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.