Home / 8,316.07-11,478.15-4,781.34

Finding the Fourth Proportional to 8,316.07, 11,478.15 and 4,781.34

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Solution

The fourth proportional to 8,316.07, 11,478.15 and 4,781.34 is: 6,599.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.07 : 11,478.15 = 4,781.34 : x
  2. Step 2: Convert to fraction form
    8,316.07/11,478.15 = 4,781.34/x
  3. Step 3: Cross multiply
    8,316.07x = 11,478.15 × 4,781.34
  4. Step 4: Simplify right side
    8,316.07x = 54,880,937.72
  5. Step 5: Solve for x
    x = 54,880,937.72/8,316.07
  6. Step 6: Final answer
    x = 6,599.38

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Half scale
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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.