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Finding the Fourth Proportional to 8,813.04, 13,191.48 and 4,905.60

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Solution

The fourth proportional to 8,813.04, 13,191.48 and 4,905.60 is: 7,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.04 : 13,191.48 = 4,905.60 : x
  2. Step 2: Convert to fraction form
    8,813.04/13,191.48 = 4,905.60/x
  3. Step 3: Cross multiply
    8,813.04x = 13,191.48 × 4,905.60
  4. Step 4: Simplify right side
    8,813.04x = 64,712,124.29
  5. Step 5: Solve for x
    x = 64,712,124.29/8,813.04
  6. Step 6: Final answer
    x = 7,342.77

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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.