Home / 11,238.40-16,833.30-10,007.20

Finding the Fourth Proportional to 11,238.40, 16,833.30 and 10,007.20

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Solution

The fourth proportional to 11,238.40, 16,833.30 and 10,007.20 is: 14,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.40 : 16,833.30 = 10,007.20 : x
  2. Step 2: Convert to fraction form
    11,238.40/16,833.30 = 10,007.20/x
  3. Step 3: Cross multiply
    11,238.40x = 16,833.30 × 10,007.20
  4. Step 4: Simplify right side
    11,238.40x = 168,454,199.76
  5. Step 5: Solve for x
    x = 168,454,199.76/11,238.40
  6. Step 6: Final answer
    x = 14,989.16

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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.