Home / 13,278.68-19,914.90-4,959.52

Finding the Fourth Proportional to 13,278.68, 19,914.90 and 4,959.52

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Solution

The fourth proportional to 13,278.68, 19,914.90 and 4,959.52 is: 7,438.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.68 : 19,914.90 = 4,959.52 : x
  2. Step 2: Convert to fraction form
    13,278.68/19,914.90 = 4,959.52/x
  3. Step 3: Cross multiply
    13,278.68x = 19,914.90 × 4,959.52
  4. Step 4: Simplify right side
    13,278.68x = 98,768,344.85
  5. Step 5: Solve for x
    x = 98,768,344.85/13,278.68
  6. Step 6: Final answer
    x = 7,438.11

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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.