Home / 13,140.05-19,709.26-5,348.66

Finding the Fourth Proportional to 13,140.05, 19,709.26 and 5,348.66

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Solution

The fourth proportional to 13,140.05, 19,709.26 and 5,348.66 is: 8,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.05 : 19,709.26 = 5,348.66 : x
  2. Step 2: Convert to fraction form
    13,140.05/19,709.26 = 5,348.66/x
  3. Step 3: Cross multiply
    13,140.05x = 19,709.26 × 5,348.66
  4. Step 4: Simplify right side
    13,140.05x = 105,418,018.67
  5. Step 5: Solve for x
    x = 105,418,018.67/13,140.05
  6. Step 6: Final answer
    x = 8,022.65

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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.