Home / 18,810.31-28,195.58-6,956.47

Finding the Fourth Proportional to 18,810.31, 28,195.58 and 6,956.47

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Solution

The fourth proportional to 18,810.31, 28,195.58 and 6,956.47 is: 10,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.31 : 28,195.58 = 6,956.47 : x
  2. Step 2: Convert to fraction form
    18,810.31/28,195.58 = 6,956.47/x
  3. Step 3: Cross multiply
    18,810.31x = 28,195.58 × 6,956.47
  4. Step 4: Simplify right side
    18,810.31x = 196,141,706.40
  5. Step 5: Solve for x
    x = 196,141,706.40/18,810.31
  6. Step 6: Final answer
    x = 10,427.35

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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.