Home / 8,749.17-12,078.33-5,931.45

Finding the Fourth Proportional to 8,749.17, 12,078.33 and 5,931.45

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Solution

The fourth proportional to 8,749.17, 12,078.33 and 5,931.45 is: 8,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.17 : 12,078.33 = 5,931.45 : x
  2. Step 2: Convert to fraction form
    8,749.17/12,078.33 = 5,931.45/x
  3. Step 3: Cross multiply
    8,749.17x = 12,078.33 × 5,931.45
  4. Step 4: Simplify right side
    8,749.17x = 71,642,010.48
  5. Step 5: Solve for x
    x = 71,642,010.48/8,749.17
  6. Step 6: Final answer
    x = 8,188.44

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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.