Home / 19,666.50-29,506.77-9,141.54

Finding the Fourth Proportional to 19,666.50, 29,506.77 and 9,141.54

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Solution

The fourth proportional to 19,666.50, 29,506.77 and 9,141.54 is: 13,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.50 : 29,506.77 = 9,141.54 : x
  2. Step 2: Convert to fraction form
    19,666.50/29,506.77 = 9,141.54/x
  3. Step 3: Cross multiply
    19,666.50x = 29,506.77 × 9,141.54
  4. Step 4: Simplify right side
    19,666.50x = 269,737,318.23
  5. Step 5: Solve for x
    x = 269,737,318.23/19,666.50
  6. Step 6: Final answer
    x = 13,715.57

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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.