Home / 13,092.81-18,061.70-7,783.85

Finding the Fourth Proportional to 13,092.81, 18,061.70 and 7,783.85

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Solution

The fourth proportional to 13,092.81, 18,061.70 and 7,783.85 is: 10,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.81 : 18,061.70 = 7,783.85 : x
  2. Step 2: Convert to fraction form
    13,092.81/18,061.70 = 7,783.85/x
  3. Step 3: Cross multiply
    13,092.81x = 18,061.70 × 7,783.85
  4. Step 4: Simplify right side
    13,092.81x = 140,589,434.32
  5. Step 5: Solve for x
    x = 140,589,434.32/13,092.81
  6. Step 6: Final answer
    x = 10,737.91

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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.