Home / 19,639.51-29,467.13-7,160.45

Finding the Fourth Proportional to 19,639.51, 29,467.13 and 7,160.45

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Solution

The fourth proportional to 19,639.51, 29,467.13 and 7,160.45 is: 10,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.51 : 29,467.13 = 7,160.45 : x
  2. Step 2: Convert to fraction form
    19,639.51/29,467.13 = 7,160.45/x
  3. Step 3: Cross multiply
    19,639.51x = 29,467.13 × 7,160.45
  4. Step 4: Simplify right side
    19,639.51x = 210,997,727.87
  5. Step 5: Solve for x
    x = 210,997,727.87/19,639.51
  6. Step 6: Final answer
    x = 10,743.53

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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.