Home / 10,021.51-13,829.70-5,545.45

Finding the Fourth Proportional to 10,021.51, 13,829.70 and 5,545.45

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Solution

The fourth proportional to 10,021.51, 13,829.70 and 5,545.45 is: 7,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.51 : 13,829.70 = 5,545.45 : x
  2. Step 2: Convert to fraction form
    10,021.51/13,829.70 = 5,545.45/x
  3. Step 3: Cross multiply
    10,021.51x = 13,829.70 × 5,545.45
  4. Step 4: Simplify right side
    10,021.51x = 76,691,909.87
  5. Step 5: Solve for x
    x = 76,691,909.87/10,021.51
  6. Step 6: Final answer
    x = 7,652.73

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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.