Home / 8,857.09-12,209.43-7,282.45

Finding the Fourth Proportional to 8,857.09, 12,209.43 and 7,282.45

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Solution

The fourth proportional to 8,857.09, 12,209.43 and 7,282.45 is: 10,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.09 : 12,209.43 = 7,282.45 : x
  2. Step 2: Convert to fraction form
    8,857.09/12,209.43 = 7,282.45/x
  3. Step 3: Cross multiply
    8,857.09x = 12,209.43 × 7,282.45
  4. Step 4: Simplify right side
    8,857.09x = 88,914,563.50
  5. Step 5: Solve for x
    x = 88,914,563.50/8,857.09
  6. Step 6: Final answer
    x = 10,038.80

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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.