Home / 12,837.68-19,285.56-7,646.96

Finding the Fourth Proportional to 12,837.68, 19,285.56 and 7,646.96

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Solution

The fourth proportional to 12,837.68, 19,285.56 and 7,646.96 is: 11,487.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.68 : 19,285.56 = 7,646.96 : x
  2. Step 2: Convert to fraction form
    12,837.68/19,285.56 = 7,646.96/x
  3. Step 3: Cross multiply
    12,837.68x = 19,285.56 × 7,646.96
  4. Step 4: Simplify right side
    12,837.68x = 147,475,905.90
  5. Step 5: Solve for x
    x = 147,475,905.90/12,837.68
  6. Step 6: Final answer
    x = 11,487.74

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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.