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Finding the Fourth Proportional to 8,698.98, 12,004.54 and 4,720.08

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Solution

The fourth proportional to 8,698.98, 12,004.54 and 4,720.08 is: 6,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.98 : 12,004.54 = 4,720.08 : x
  2. Step 2: Convert to fraction form
    8,698.98/12,004.54 = 4,720.08/x
  3. Step 3: Cross multiply
    8,698.98x = 12,004.54 × 4,720.08
  4. Step 4: Simplify right side
    8,698.98x = 56,662,377.36
  5. Step 5: Solve for x
    x = 56,662,377.36/8,698.98
  6. Step 6: Final answer
    x = 6,513.68

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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.