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Finding the Fourth Proportional to 13,298.58, 19,945.71 and 6,278.58

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Solution

The fourth proportional to 13,298.58, 19,945.71 and 6,278.58 is: 9,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.58 : 19,945.71 = 6,278.58 : x
  2. Step 2: Convert to fraction form
    13,298.58/19,945.71 = 6,278.58/x
  3. Step 3: Cross multiply
    13,298.58x = 19,945.71 × 6,278.58
  4. Step 4: Simplify right side
    13,298.58x = 125,230,704.50
  5. Step 5: Solve for x
    x = 125,230,704.50/13,298.58
  6. Step 6: Final answer
    x = 9,416.85

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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.