Home / 18,437.55-27,656.47-5,290.34

Finding the Fourth Proportional to 18,437.55, 27,656.47 and 5,290.34

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Solution

The fourth proportional to 18,437.55, 27,656.47 and 5,290.34 is: 7,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.55 : 27,656.47 = 5,290.34 : x
  2. Step 2: Convert to fraction form
    18,437.55/27,656.47 = 5,290.34/x
  3. Step 3: Cross multiply
    18,437.55x = 27,656.47 × 5,290.34
  4. Step 4: Simplify right side
    18,437.55x = 146,311,991.22
  5. Step 5: Solve for x
    x = 146,311,991.22/18,437.55
  6. Step 6: Final answer
    x = 7,935.55

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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.