Home / 10,013.21-13,821.50-7,029.77

Finding the Fourth Proportional to 10,013.21, 13,821.50 and 7,029.77

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Solution

The fourth proportional to 10,013.21, 13,821.50 and 7,029.77 is: 9,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.21 : 13,821.50 = 7,029.77 : x
  2. Step 2: Convert to fraction form
    10,013.21/13,821.50 = 7,029.77/x
  3. Step 3: Cross multiply
    10,013.21x = 13,821.50 × 7,029.77
  4. Step 4: Simplify right side
    10,013.21x = 97,161,861.80
  5. Step 5: Solve for x
    x = 97,161,861.80/10,013.21
  6. Step 6: Final answer
    x = 9,703.37

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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.