Home / 15,791.51-23,678.56-6,429.13

Finding the Fourth Proportional to 15,791.51, 23,678.56 and 6,429.13

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Solution

The fourth proportional to 15,791.51, 23,678.56 and 6,429.13 is: 9,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.51 : 23,678.56 = 6,429.13 : x
  2. Step 2: Convert to fraction form
    15,791.51/23,678.56 = 6,429.13/x
  3. Step 3: Cross multiply
    15,791.51x = 23,678.56 × 6,429.13
  4. Step 4: Simplify right side
    15,791.51x = 152,232,540.45
  5. Step 5: Solve for x
    x = 152,232,540.45/15,791.51
  6. Step 6: Final answer
    x = 9,640.15

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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.