Home / 12,591.81-17,376.33-6,926.56

Finding the Fourth Proportional to 12,591.81, 17,376.33 and 6,926.56

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Solution

The fourth proportional to 12,591.81, 17,376.33 and 6,926.56 is: 9,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.81 : 17,376.33 = 6,926.56 : x
  2. Step 2: Convert to fraction form
    12,591.81/17,376.33 = 6,926.56/x
  3. Step 3: Cross multiply
    12,591.81x = 17,376.33 × 6,926.56
  4. Step 4: Simplify right side
    12,591.81x = 120,358,070.81
  5. Step 5: Solve for x
    x = 120,358,070.81/12,591.81
  6. Step 6: Final answer
    x = 9,558.44

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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.