Home / 10,205.18-14,083.20-5,728.94

Finding the Fourth Proportional to 10,205.18, 14,083.20 and 5,728.94

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Solution

The fourth proportional to 10,205.18, 14,083.20 and 5,728.94 is: 7,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.18 : 14,083.20 = 5,728.94 : x
  2. Step 2: Convert to fraction form
    10,205.18/14,083.20 = 5,728.94/x
  3. Step 3: Cross multiply
    10,205.18x = 14,083.20 × 5,728.94
  4. Step 4: Simplify right side
    10,205.18x = 80,681,807.81
  5. Step 5: Solve for x
    x = 80,681,807.81/10,205.18
  6. Step 6: Final answer
    x = 7,905.97

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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.