Home / 8,749.36-12,079.14-5,764.10

Finding the Fourth Proportional to 8,749.36, 12,079.14 and 5,764.10

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Solution

The fourth proportional to 8,749.36, 12,079.14 and 5,764.10 is: 7,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.36 : 12,079.14 = 5,764.10 : x
  2. Step 2: Convert to fraction form
    8,749.36/12,079.14 = 5,764.10/x
  3. Step 3: Cross multiply
    8,749.36x = 12,079.14 × 5,764.10
  4. Step 4: Simplify right side
    8,749.36x = 69,625,370.87
  5. Step 5: Solve for x
    x = 69,625,370.87/8,749.36
  6. Step 6: Final answer
    x = 7,957.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.