Home / 19,386.44-29,079.79-7,699.62

Finding the Fourth Proportional to 19,386.44, 29,079.79 and 7,699.62

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Solution

The fourth proportional to 19,386.44, 29,079.79 and 7,699.62 is: 11,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.44 : 29,079.79 = 7,699.62 : x
  2. Step 2: Convert to fraction form
    19,386.44/29,079.79 = 7,699.62/x
  3. Step 3: Cross multiply
    19,386.44x = 29,079.79 × 7,699.62
  4. Step 4: Simplify right side
    19,386.44x = 223,903,332.68
  5. Step 5: Solve for x
    x = 223,903,332.68/19,386.44
  6. Step 6: Final answer
    x = 11,549.48

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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.