Home / 18,124.38-27,188.82-6,437.70

Finding the Fourth Proportional to 18,124.38, 27,188.82 and 6,437.70

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Solution

The fourth proportional to 18,124.38, 27,188.82 and 6,437.70 is: 9,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.38 : 27,188.82 = 6,437.70 : x
  2. Step 2: Convert to fraction form
    18,124.38/27,188.82 = 6,437.70/x
  3. Step 3: Cross multiply
    18,124.38x = 27,188.82 × 6,437.70
  4. Step 4: Simplify right side
    18,124.38x = 175,033,466.51
  5. Step 5: Solve for x
    x = 175,033,466.51/18,124.38
  6. Step 6: Final answer
    x = 9,657.35

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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.