Home / 10,812.51-16,189.45-5,607.45

Finding the Fourth Proportional to 10,812.51, 16,189.45 and 5,607.45

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Solution

The fourth proportional to 10,812.51, 16,189.45 and 5,607.45 is: 8,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,812.51 : 16,189.45 = 5,607.45 : x
  2. Step 2: Convert to fraction form
    10,812.51/16,189.45 = 5,607.45/x
  3. Step 3: Cross multiply
    10,812.51x = 16,189.45 × 5,607.45
  4. Step 4: Simplify right side
    10,812.51x = 90,781,517.38
  5. Step 5: Solve for x
    x = 90,781,517.38/10,812.51
  6. Step 6: Final answer
    x = 8,395.97

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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.