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Finding the Fourth Proportional to 8,950.19, 13,366.76 and 7,619.76

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Solution

The fourth proportional to 8,950.19, 13,366.76 and 7,619.76 is: 11,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.19 : 13,366.76 = 7,619.76 : x
  2. Step 2: Convert to fraction form
    8,950.19/13,366.76 = 7,619.76/x
  3. Step 3: Cross multiply
    8,950.19x = 13,366.76 × 7,619.76
  4. Step 4: Simplify right side
    8,950.19x = 101,851,465.08
  5. Step 5: Solve for x
    x = 101,851,465.08/8,950.19
  6. Step 6: Final answer
    x = 11,379.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.