Home / 8,901.09-12,289.59-5,549.04

Finding the Fourth Proportional to 8,901.09, 12,289.59 and 5,549.04

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Solution

The fourth proportional to 8,901.09, 12,289.59 and 5,549.04 is: 7,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.09 : 12,289.59 = 5,549.04 : x
  2. Step 2: Convert to fraction form
    8,901.09/12,289.59 = 5,549.04/x
  3. Step 3: Cross multiply
    8,901.09x = 12,289.59 × 5,549.04
  4. Step 4: Simplify right side
    8,901.09x = 68,195,426.49
  5. Step 5: Solve for x
    x = 68,195,426.49/8,901.09
  6. Step 6: Final answer
    x = 7,661.47

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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.