Home / 10,431.06-14,389.44-7,072.68

Finding the Fourth Proportional to 10,431.06, 14,389.44 and 7,072.68

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Solution

The fourth proportional to 10,431.06, 14,389.44 and 7,072.68 is: 9,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.06 : 14,389.44 = 7,072.68 : x
  2. Step 2: Convert to fraction form
    10,431.06/14,389.44 = 7,072.68/x
  3. Step 3: Cross multiply
    10,431.06x = 14,389.44 × 7,072.68
  4. Step 4: Simplify right side
    10,431.06x = 101,771,904.50
  5. Step 5: Solve for x
    x = 101,771,904.50/10,431.06
  6. Step 6: Final answer
    x = 9,756.62

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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.