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Finding the Fourth Proportional to 8,014.80, 11,060.64 and 4,478.40

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Solution

The fourth proportional to 8,014.80, 11,060.64 and 4,478.40 is: 6,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,014.80 : 11,060.64 = 4,478.40 : x
  2. Step 2: Convert to fraction form
    8,014.80/11,060.64 = 4,478.40/x
  3. Step 3: Cross multiply
    8,014.80x = 11,060.64 × 4,478.40
  4. Step 4: Simplify right side
    8,014.80x = 49,533,970.18
  5. Step 5: Solve for x
    x = 49,533,970.18/8,014.80
  6. Step 6: Final answer
    x = 6,180.31

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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.