Home / 12,749.20-19,118.96-4,956.24

Finding the Fourth Proportional to 12,749.20, 19,118.96 and 4,956.24

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Solution

The fourth proportional to 12,749.20, 19,118.96 and 4,956.24 is: 7,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.20 : 19,118.96 = 4,956.24 : x
  2. Step 2: Convert to fraction form
    12,749.20/19,118.96 = 4,956.24/x
  3. Step 3: Cross multiply
    12,749.20x = 19,118.96 × 4,956.24
  4. Step 4: Simplify right side
    12,749.20x = 94,758,154.31
  5. Step 5: Solve for x
    x = 94,758,154.31/12,749.20
  6. Step 6: Final answer
    x = 7,432.48

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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.