Home / 19,658.40-29,487.26-7,178.36

Finding the Fourth Proportional to 19,658.40, 29,487.26 and 7,178.36

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Solution

The fourth proportional to 19,658.40, 29,487.26 and 7,178.36 is: 10,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,658.40 : 29,487.26 = 7,178.36 : x
  2. Step 2: Convert to fraction form
    19,658.40/29,487.26 = 7,178.36/x
  3. Step 3: Cross multiply
    19,658.40x = 29,487.26 × 7,178.36
  4. Step 4: Simplify right side
    19,658.40x = 211,670,167.69
  5. Step 5: Solve for x
    x = 211,670,167.69/19,658.40
  6. Step 6: Final answer
    x = 10,767.42

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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.