Home / 18,579.49-27,869.27-7,903.08

Finding the Fourth Proportional to 18,579.49, 27,869.27 and 7,903.08

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Solution

The fourth proportional to 18,579.49, 27,869.27 and 7,903.08 is: 11,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.49 : 27,869.27 = 7,903.08 : x
  2. Step 2: Convert to fraction form
    18,579.49/27,869.27 = 7,903.08/x
  3. Step 3: Cross multiply
    18,579.49x = 27,869.27 × 7,903.08
  4. Step 4: Simplify right side
    18,579.49x = 220,253,030.84
  5. Step 5: Solve for x
    x = 220,253,030.84/18,579.49
  6. Step 6: Final answer
    x = 11,854.63

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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.