Home / 13,884.91-19,160.98-7,916.67

Finding the Fourth Proportional to 13,884.91, 19,160.98 and 7,916.67

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Solution

The fourth proportional to 13,884.91, 19,160.98 and 7,916.67 is: 10,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.91 : 19,160.98 = 7,916.67 : x
  2. Step 2: Convert to fraction form
    13,884.91/19,160.98 = 7,916.67/x
  3. Step 3: Cross multiply
    13,884.91x = 19,160.98 × 7,916.67
  4. Step 4: Simplify right side
    13,884.91x = 151,691,135.74
  5. Step 5: Solve for x
    x = 151,691,135.74/13,884.91
  6. Step 6: Final answer
    x = 10,924.89

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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.