Home / 13,178.28-19,770.08-4,858.35

Finding the Fourth Proportional to 13,178.28, 19,770.08 and 4,858.35

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Solution

The fourth proportional to 13,178.28, 19,770.08 and 4,858.35 is: 7,288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.28 : 19,770.08 = 4,858.35 : x
  2. Step 2: Convert to fraction form
    13,178.28/19,770.08 = 4,858.35/x
  3. Step 3: Cross multiply
    13,178.28x = 19,770.08 × 4,858.35
  4. Step 4: Simplify right side
    13,178.28x = 96,049,943.88
  5. Step 5: Solve for x
    x = 96,049,943.88/13,178.28
  6. Step 6: Final answer
    x = 7,288.50

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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.