Home / 10,859.04-14,974.80-8,021.60

Finding the Fourth Proportional to 10,859.04, 14,974.80 and 8,021.60

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Solution

The fourth proportional to 10,859.04, 14,974.80 and 8,021.60 is: 11,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.04 : 14,974.80 = 8,021.60 : x
  2. Step 2: Convert to fraction form
    10,859.04/14,974.80 = 8,021.60/x
  3. Step 3: Cross multiply
    10,859.04x = 14,974.80 × 8,021.60
  4. Step 4: Simplify right side
    10,859.04x = 120,121,855.68
  5. Step 5: Solve for x
    x = 120,121,855.68/10,859.04
  6. Step 6: Final answer
    x = 11,061.92

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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.