Home / 18,426.09-27,641.16-5,280.60

Finding the Fourth Proportional to 18,426.09, 27,641.16 and 5,280.60

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Solution

The fourth proportional to 18,426.09, 27,641.16 and 5,280.60 is: 7,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.09 : 27,641.16 = 5,280.60 : x
  2. Step 2: Convert to fraction form
    18,426.09/27,641.16 = 5,280.60/x
  3. Step 3: Cross multiply
    18,426.09x = 27,641.16 × 5,280.60
  4. Step 4: Simplify right side
    18,426.09x = 145,961,909.50
  5. Step 5: Solve for x
    x = 145,961,909.50/18,426.09
  6. Step 6: Final answer
    x = 7,921.48

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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.