Home / 13,631.31-20,440.62-8,011.62

Finding the Fourth Proportional to 13,631.31, 20,440.62 and 8,011.62

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Solution

The fourth proportional to 13,631.31, 20,440.62 and 8,011.62 is: 12,013.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.31 : 20,440.62 = 8,011.62 : x
  2. Step 2: Convert to fraction form
    13,631.31/20,440.62 = 8,011.62/x
  3. Step 3: Cross multiply
    13,631.31x = 20,440.62 × 8,011.62
  4. Step 4: Simplify right side
    13,631.31x = 163,762,480.00
  5. Step 5: Solve for x
    x = 163,762,480.00/13,631.31
  6. Step 6: Final answer
    x = 12,013.70

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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.