Home / 15,829.80-21,847.50-9,545.64

Finding the Fourth Proportional to 15,829.80, 21,847.50 and 9,545.64

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Solution

The fourth proportional to 15,829.80, 21,847.50 and 9,545.64 is: 13,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829.80 : 21,847.50 = 9,545.64 : x
  2. Step 2: Convert to fraction form
    15,829.80/21,847.50 = 9,545.64/x
  3. Step 3: Cross multiply
    15,829.80x = 21,847.50 × 9,545.64
  4. Step 4: Simplify right side
    15,829.80x = 208,548,369.90
  5. Step 5: Solve for x
    x = 208,548,369.90/15,829.80
  6. Step 6: Final answer
    x = 13,174.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.