Home / 18,606.89-27,911.25-5,458.16

Finding the Fourth Proportional to 18,606.89, 27,911.25 and 5,458.16

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Solution

The fourth proportional to 18,606.89, 27,911.25 and 5,458.16 is: 8,187.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.89 : 27,911.25 = 5,458.16 : x
  2. Step 2: Convert to fraction form
    18,606.89/27,911.25 = 5,458.16/x
  3. Step 3: Cross multiply
    18,606.89x = 27,911.25 × 5,458.16
  4. Step 4: Simplify right side
    18,606.89x = 152,343,901.45
  5. Step 5: Solve for x
    x = 152,343,901.45/18,606.89
  6. Step 6: Final answer
    x = 8,187.50

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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.