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Finding the Fourth Proportional to 8,698.05, 12,003.32 and 4,719.16

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Solution

The fourth proportional to 8,698.05, 12,003.32 and 4,719.16 is: 6,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.05 : 12,003.32 = 4,719.16 : x
  2. Step 2: Convert to fraction form
    8,698.05/12,003.32 = 4,719.16/x
  3. Step 3: Cross multiply
    8,698.05x = 12,003.32 × 4,719.16
  4. Step 4: Simplify right side
    8,698.05x = 56,645,614.41
  5. Step 5: Solve for x
    x = 56,645,614.41/8,698.05
  6. Step 6: Final answer
    x = 6,512.45

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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.