Home / 8,316.32-11,478.24-4,780.67

Finding the Fourth Proportional to 8,316.32, 11,478.24 and 4,780.67

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Solution

The fourth proportional to 8,316.32, 11,478.24 and 4,780.67 is: 6,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.32 : 11,478.24 = 4,780.67 : x
  2. Step 2: Convert to fraction form
    8,316.32/11,478.24 = 4,780.67/x
  3. Step 3: Cross multiply
    8,316.32x = 11,478.24 × 4,780.67
  4. Step 4: Simplify right side
    8,316.32x = 54,873,620.23
  5. Step 5: Solve for x
    x = 54,873,620.23/8,316.32
  6. Step 6: Final answer
    x = 6,598.31

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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.