Home / 12,012.81-18,022.46-10,856.13

Finding the Fourth Proportional to 12,012.81, 18,022.46 and 10,856.13

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Solution

The fourth proportional to 12,012.81, 18,022.46 and 10,856.13 is: 16,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.81 : 18,022.46 = 10,856.13 : x
  2. Step 2: Convert to fraction form
    12,012.81/18,022.46 = 10,856.13/x
  3. Step 3: Cross multiply
    12,012.81x = 18,022.46 × 10,856.13
  4. Step 4: Simplify right side
    12,012.81x = 195,654,114.40
  5. Step 5: Solve for x
    x = 195,654,114.40/12,012.81
  6. Step 6: Final answer
    x = 16,287.12

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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.