Home / 10,555.24-15,815.70-6,161.80

Finding the Fourth Proportional to 10,555.24, 15,815.70 and 6,161.80

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Solution

The fourth proportional to 10,555.24, 15,815.70 and 6,161.80 is: 9,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.24 : 15,815.70 = 6,161.80 : x
  2. Step 2: Convert to fraction form
    10,555.24/15,815.70 = 6,161.80/x
  3. Step 3: Cross multiply
    10,555.24x = 15,815.70 × 6,161.80
  4. Step 4: Simplify right side
    10,555.24x = 97,453,180.26
  5. Step 5: Solve for x
    x = 97,453,180.26/10,555.24
  6. Step 6: Final answer
    x = 9,232.68

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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.