Home / 11,199.77-15,450.55-6,715.81

Finding the Fourth Proportional to 11,199.77, 15,450.55 and 6,715.81

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Solution

The fourth proportional to 11,199.77, 15,450.55 and 6,715.81 is: 9,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199.77 : 15,450.55 = 6,715.81 : x
  2. Step 2: Convert to fraction form
    11,199.77/15,450.55 = 6,715.81/x
  3. Step 3: Cross multiply
    11,199.77x = 15,450.55 × 6,715.81
  4. Step 4: Simplify right side
    11,199.77x = 103,762,960.72
  5. Step 5: Solve for x
    x = 103,762,960.72/11,199.77
  6. Step 6: Final answer
    x = 9,264.74

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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.