Home / 12,749.58-19,117.80-5,723.57

Finding the Fourth Proportional to 12,749.58, 19,117.80 and 5,723.57

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Solution

The fourth proportional to 12,749.58, 19,117.80 and 5,723.57 is: 8,582.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.58 : 19,117.80 = 5,723.57 : x
  2. Step 2: Convert to fraction form
    12,749.58/19,117.80 = 5,723.57/x
  3. Step 3: Cross multiply
    12,749.58x = 19,117.80 × 5,723.57
  4. Step 4: Simplify right side
    12,749.58x = 109,422,125.13
  5. Step 5: Solve for x
    x = 109,422,125.13/12,749.58
  6. Step 6: Final answer
    x = 8,582.41

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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.