Home / 10,013.30-13,821.24-6,612.80

Finding the Fourth Proportional to 10,013.30, 13,821.24 and 6,612.80

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Solution

The fourth proportional to 10,013.30, 13,821.24 and 6,612.80 is: 9,127.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.30 : 13,821.24 = 6,612.80 : x
  2. Step 2: Convert to fraction form
    10,013.30/13,821.24 = 6,612.80/x
  3. Step 3: Cross multiply
    10,013.30x = 13,821.24 × 6,612.80
  4. Step 4: Simplify right side
    10,013.30x = 91,397,051.56
  5. Step 5: Solve for x
    x = 91,397,051.56/10,013.30
  6. Step 6: Final answer
    x = 9,127.57

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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.