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Finding the Fourth Proportional to 8,698.72, 13,048.08 and 2,853.76

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Solution

The fourth proportional to 8,698.72, 13,048.08 and 2,853.76 is: 4,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.72 : 13,048.08 = 2,853.76 : x
  2. Step 2: Convert to fraction form
    8,698.72/13,048.08 = 2,853.76/x
  3. Step 3: Cross multiply
    8,698.72x = 13,048.08 × 2,853.76
  4. Step 4: Simplify right side
    8,698.72x = 37,236,088.78
  5. Step 5: Solve for x
    x = 37,236,088.78/8,698.72
  6. Step 6: Final answer
    x = 4,280.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.