Home / 12,472.11-17,214.47-7,170.01

Finding the Fourth Proportional to 12,472.11, 17,214.47 and 7,170.01

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Solution

The fourth proportional to 12,472.11, 17,214.47 and 7,170.01 is: 9,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.11 : 17,214.47 = 7,170.01 : x
  2. Step 2: Convert to fraction form
    12,472.11/17,214.47 = 7,170.01/x
  3. Step 3: Cross multiply
    12,472.11x = 17,214.47 × 7,170.01
  4. Step 4: Simplify right side
    12,472.11x = 123,427,800.12
  5. Step 5: Solve for x
    x = 123,427,800.12/12,472.11
  6. Step 6: Final answer
    x = 9,896.30

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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.