Home / 18,549.68-27,810.12-9,661.28

Finding the Fourth Proportional to 18,549.68, 27,810.12 and 9,661.28

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Solution

The fourth proportional to 18,549.68, 27,810.12 and 9,661.28 is: 14,484.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.68 : 27,810.12 = 9,661.28 : x
  2. Step 2: Convert to fraction form
    18,549.68/27,810.12 = 9,661.28/x
  3. Step 3: Cross multiply
    18,549.68x = 27,810.12 × 9,661.28
  4. Step 4: Simplify right side
    18,549.68x = 268,681,356.15
  5. Step 5: Solve for x
    x = 268,681,356.15/18,549.68
  6. Step 6: Final answer
    x = 14,484.42

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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.