Home / 10,854.24-14,980.80-6,664.80

Finding the Fourth Proportional to 10,854.24, 14,980.80 and 6,664.80

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Solution

The fourth proportional to 10,854.24, 14,980.80 and 6,664.80 is: 9,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.24 : 14,980.80 = 6,664.80 : x
  2. Step 2: Convert to fraction form
    10,854.24/14,980.80 = 6,664.80/x
  3. Step 3: Cross multiply
    10,854.24x = 14,980.80 × 6,664.80
  4. Step 4: Simplify right side
    10,854.24x = 99,844,035.84
  5. Step 5: Solve for x
    x = 99,844,035.84/10,854.24
  6. Step 6: Final answer
    x = 9,198.62

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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.