Home / 18,570.28-27,873.10-11,528.98

Finding the Fourth Proportional to 18,570.28, 27,873.10 and 11,528.98

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Solution

The fourth proportional to 18,570.28, 27,873.10 and 11,528.98 is: 17,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.28 : 27,873.10 = 11,528.98 : x
  2. Step 2: Convert to fraction form
    18,570.28/27,873.10 = 11,528.98/x
  3. Step 3: Cross multiply
    18,570.28x = 27,873.10 × 11,528.98
  4. Step 4: Simplify right side
    18,570.28x = 321,348,412.44
  5. Step 5: Solve for x
    x = 321,348,412.44/18,570.28
  6. Step 6: Final answer
    x = 17,304.45

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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.