Home / 10,072.61-15,102.43-6,605.81

Finding the Fourth Proportional to 10,072.61, 15,102.43 and 6,605.81

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Solution

The fourth proportional to 10,072.61, 15,102.43 and 6,605.81 is: 9,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.61 : 15,102.43 = 6,605.81 : x
  2. Step 2: Convert to fraction form
    10,072.61/15,102.43 = 6,605.81/x
  3. Step 3: Cross multiply
    10,072.61x = 15,102.43 × 6,605.81
  4. Step 4: Simplify right side
    10,072.61x = 99,763,783.12
  5. Step 5: Solve for x
    x = 99,763,783.12/10,072.61
  6. Step 6: Final answer
    x = 9,904.46

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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.