Home / 12,018.40-16,586.15-6,713.62

Finding the Fourth Proportional to 12,018.40, 16,586.15 and 6,713.62

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Solution

The fourth proportional to 12,018.40, 16,586.15 and 6,713.62 is: 9,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.40 : 16,586.15 = 6,713.62 : x
  2. Step 2: Convert to fraction form
    12,018.40/16,586.15 = 6,713.62/x
  3. Step 3: Cross multiply
    12,018.40x = 16,586.15 × 6,713.62
  4. Step 4: Simplify right side
    12,018.40x = 111,353,033.33
  5. Step 5: Solve for x
    x = 111,353,033.33/12,018.40
  6. Step 6: Final answer
    x = 9,265.21

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Half scale
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Double scale
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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.