Home / 8,316.90-11,478.48-4,780.04

Finding the Fourth Proportional to 8,316.90, 11,478.48 and 4,780.04

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Solution

The fourth proportional to 8,316.90, 11,478.48 and 4,780.04 is: 6,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.90 : 11,478.48 = 4,780.04 : x
  2. Step 2: Convert to fraction form
    8,316.90/11,478.48 = 4,780.04/x
  3. Step 3: Cross multiply
    8,316.90x = 11,478.48 × 4,780.04
  4. Step 4: Simplify right side
    8,316.90x = 54,867,518.22
  5. Step 5: Solve for x
    x = 54,867,518.22/8,316.90
  6. Step 6: Final answer
    x = 6,597.11

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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.