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Finding the Fourth Proportional to 12,750.48, 19,090.08 and 6,886.08

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Solution

The fourth proportional to 12,750.48, 19,090.08 and 6,886.08 is: 10,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.48 : 19,090.08 = 6,886.08 : x
  2. Step 2: Convert to fraction form
    12,750.48/19,090.08 = 6,886.08/x
  3. Step 3: Cross multiply
    12,750.48x = 19,090.08 × 6,886.08
  4. Step 4: Simplify right side
    12,750.48x = 131,455,818.09
  5. Step 5: Solve for x
    x = 131,455,818.09/12,750.48
  6. Step 6: Final answer
    x = 10,309.87

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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.