Home / 10,996.80-16,485.60-9,830.40

Finding the Fourth Proportional to 10,996.80, 16,485.60 and 9,830.40

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Solution

The fourth proportional to 10,996.80, 16,485.60 and 9,830.40 is: 14,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,996.80 : 16,485.60 = 9,830.40 : x
  2. Step 2: Convert to fraction form
    10,996.80/16,485.60 = 9,830.40/x
  3. Step 3: Cross multiply
    10,996.80x = 16,485.60 × 9,830.40
  4. Step 4: Simplify right side
    10,996.80x = 162,060,042.24
  5. Step 5: Solve for x
    x = 162,060,042.24/10,996.80
  6. Step 6: Final answer
    x = 14,737.02

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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.