Home / 17,919.78-26,822.16-9,578.94

Finding the Fourth Proportional to 17,919.78, 26,822.16 and 9,578.94

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Solution

The fourth proportional to 17,919.78, 26,822.16 and 9,578.94 is: 14,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,919.78 : 26,822.16 = 9,578.94 : x
  2. Step 2: Convert to fraction form
    17,919.78/26,822.16 = 9,578.94/x
  3. Step 3: Cross multiply
    17,919.78x = 26,822.16 × 9,578.94
  4. Step 4: Simplify right side
    17,919.78x = 256,927,861.31
  5. Step 5: Solve for x
    x = 256,927,861.31/17,919.78
  6. Step 6: Final answer
    x = 14,337.67

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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.