Home / 13,369.84-18,458.74-8,591.71

Finding the Fourth Proportional to 13,369.84, 18,458.74 and 8,591.71

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Solution

The fourth proportional to 13,369.84, 18,458.74 and 8,591.71 is: 11,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.84 : 18,458.74 = 8,591.71 : x
  2. Step 2: Convert to fraction form
    13,369.84/18,458.74 = 8,591.71/x
  3. Step 3: Cross multiply
    13,369.84x = 18,458.74 × 8,591.71
  4. Step 4: Simplify right side
    13,369.84x = 158,592,141.05
  5. Step 5: Solve for x
    x = 158,592,141.05/13,369.84
  6. Step 6: Final answer
    x = 11,861.93

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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.