Home / 8,970.76-12,385.34-6,608.80

Finding the Fourth Proportional to 8,970.76, 12,385.34 and 6,608.80

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Solution

The fourth proportional to 8,970.76, 12,385.34 and 6,608.80 is: 9,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.76 : 12,385.34 = 6,608.80 : x
  2. Step 2: Convert to fraction form
    8,970.76/12,385.34 = 6,608.80/x
  3. Step 3: Cross multiply
    8,970.76x = 12,385.34 × 6,608.80
  4. Step 4: Simplify right side
    8,970.76x = 81,852,234.99
  5. Step 5: Solve for x
    x = 81,852,234.99/8,970.76
  6. Step 6: Final answer
    x = 9,124.34

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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.