Home / 8,746.68-13,112.28-5,978.64

Finding the Fourth Proportional to 8,746.68, 13,112.28 and 5,978.64

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Solution

The fourth proportional to 8,746.68, 13,112.28 and 5,978.64 is: 8,962.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.68 : 13,112.28 = 5,978.64 : x
  2. Step 2: Convert to fraction form
    8,746.68/13,112.28 = 5,978.64/x
  3. Step 3: Cross multiply
    8,746.68x = 13,112.28 × 5,978.64
  4. Step 4: Simplify right side
    8,746.68x = 78,393,601.70
  5. Step 5: Solve for x
    x = 78,393,601.70/8,746.68
  6. Step 6: Final answer
    x = 8,962.67

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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.