Home / 13,384.90-20,066.06-8,443.65

Finding the Fourth Proportional to 13,384.90, 20,066.06 and 8,443.65

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Solution

The fourth proportional to 13,384.90, 20,066.06 and 8,443.65 is: 12,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.90 : 20,066.06 = 8,443.65 : x
  2. Step 2: Convert to fraction form
    13,384.90/20,066.06 = 8,443.65/x
  3. Step 3: Cross multiply
    13,384.90x = 20,066.06 × 8,443.65
  4. Step 4: Simplify right side
    13,384.90x = 169,430,687.19
  5. Step 5: Solve for x
    x = 169,430,687.19/13,384.90
  6. Step 6: Final answer
    x = 12,658.35

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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.