Home / 10,746.80-16,120.20-9,969.20

Finding the Fourth Proportional to 10,746.80, 16,120.20 and 9,969.20

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Solution

The fourth proportional to 10,746.80, 16,120.20 and 9,969.20 is: 14,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,746.80 : 16,120.20 = 9,969.20 : x
  2. Step 2: Convert to fraction form
    10,746.80/16,120.20 = 9,969.20/x
  3. Step 3: Cross multiply
    10,746.80x = 16,120.20 × 9,969.20
  4. Step 4: Simplify right side
    10,746.80x = 160,705,497.84
  5. Step 5: Solve for x
    x = 160,705,497.84/10,746.80
  6. Step 6: Final answer
    x = 14,953.80

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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.