Home / 18,399.30-27,590.65-5,248.55

Finding the Fourth Proportional to 18,399.30, 27,590.65 and 5,248.55

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Solution

The fourth proportional to 18,399.30, 27,590.65 and 5,248.55 is: 7,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.30 : 27,590.65 = 5,248.55 : x
  2. Step 2: Convert to fraction form
    18,399.30/27,590.65 = 5,248.55/x
  3. Step 3: Cross multiply
    18,399.30x = 27,590.65 × 5,248.55
  4. Step 4: Simplify right side
    18,399.30x = 144,810,754.98
  5. Step 5: Solve for x
    x = 144,810,754.98/18,399.30
  6. Step 6: Final answer
    x = 7,870.45

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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.