Home / 18,973.40-28,463.79-7,285.76

Finding the Fourth Proportional to 18,973.40, 28,463.79 and 7,285.76

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Solution

The fourth proportional to 18,973.40, 28,463.79 and 7,285.76 is: 10,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,973.40 : 28,463.79 = 7,285.76 : x
  2. Step 2: Convert to fraction form
    18,973.40/28,463.79 = 7,285.76/x
  3. Step 3: Cross multiply
    18,973.40x = 28,463.79 × 7,285.76
  4. Step 4: Simplify right side
    18,973.40x = 207,380,342.63
  5. Step 5: Solve for x
    x = 207,380,342.63/18,973.40
  6. Step 6: Final answer
    x = 10,930.06

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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.