Home / 8,563.29-11,803.20-5,729.65

Finding the Fourth Proportional to 8,563.29, 11,803.20 and 5,729.65

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Solution

The fourth proportional to 8,563.29, 11,803.20 and 5,729.65 is: 7,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.29 : 11,803.20 = 5,729.65 : x
  2. Step 2: Convert to fraction form
    8,563.29/11,803.20 = 5,729.65/x
  3. Step 3: Cross multiply
    8,563.29x = 11,803.20 × 5,729.65
  4. Step 4: Simplify right side
    8,563.29x = 67,628,153.89
  5. Step 5: Solve for x
    x = 67,628,153.89/8,563.29
  6. Step 6: Final answer
    x = 7,897.45

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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.