Home / 15,642.05-23,458.12-5,109.68

Finding the Fourth Proportional to 15,642.05, 23,458.12 and 5,109.68

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Solution

The fourth proportional to 15,642.05, 23,458.12 and 5,109.68 is: 7,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.05 : 23,458.12 = 5,109.68 : x
  2. Step 2: Convert to fraction form
    15,642.05/23,458.12 = 5,109.68/x
  3. Step 3: Cross multiply
    15,642.05x = 23,458.12 × 5,109.68
  4. Step 4: Simplify right side
    15,642.05x = 119,863,356.54
  5. Step 5: Solve for x
    x = 119,863,356.54/15,642.05
  6. Step 6: Final answer
    x = 7,662.89

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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.