Home / 13,040.46-18,005.40-8,011.62

Finding the Fourth Proportional to 13,040.46, 18,005.40 and 8,011.62

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Solution

The fourth proportional to 13,040.46, 18,005.40 and 8,011.62 is: 11,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.46 : 18,005.40 = 8,011.62 : x
  2. Step 2: Convert to fraction form
    13,040.46/18,005.40 = 8,011.62/x
  3. Step 3: Cross multiply
    13,040.46x = 18,005.40 × 8,011.62
  4. Step 4: Simplify right side
    13,040.46x = 144,252,422.75
  5. Step 5: Solve for x
    x = 144,252,422.75/13,040.46
  6. Step 6: Final answer
    x = 11,061.91

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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.