Home / 13,039.86-19,568.70-7,200.57

Finding the Fourth Proportional to 13,039.86, 19,568.70 and 7,200.57

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Solution

The fourth proportional to 13,039.86, 19,568.70 and 7,200.57 is: 10,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.86 : 19,568.70 = 7,200.57 : x
  2. Step 2: Convert to fraction form
    13,039.86/19,568.70 = 7,200.57/x
  3. Step 3: Cross multiply
    13,039.86x = 19,568.70 × 7,200.57
  4. Step 4: Simplify right side
    13,039.86x = 140,905,758.16
  5. Step 5: Solve for x
    x = 140,905,758.16/13,039.86
  6. Step 6: Final answer
    x = 10,805.77

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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.