Home / 10,900.12-16,348.53-5,199.64

Finding the Fourth Proportional to 10,900.12, 16,348.53 and 5,199.64

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Solution

The fourth proportional to 10,900.12, 16,348.53 and 5,199.64 is: 7,798.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.12 : 16,348.53 = 5,199.64 : x
  2. Step 2: Convert to fraction form
    10,900.12/16,348.53 = 5,199.64/x
  3. Step 3: Cross multiply
    10,900.12x = 16,348.53 × 5,199.64
  4. Step 4: Simplify right side
    10,900.12x = 85,006,541.12
  5. Step 5: Solve for x
    x = 85,006,541.12/10,900.12
  6. Step 6: Final answer
    x = 7,798.68

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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.