Home / 12,477.29-17,219.66-7,101.41

Finding the Fourth Proportional to 12,477.29, 17,219.66 and 7,101.41

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Solution

The fourth proportional to 12,477.29, 17,219.66 and 7,101.41 is: 9,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.29 : 17,219.66 = 7,101.41 : x
  2. Step 2: Convert to fraction form
    12,477.29/17,219.66 = 7,101.41/x
  3. Step 3: Cross multiply
    12,477.29x = 17,219.66 × 7,101.41
  4. Step 4: Simplify right side
    12,477.29x = 122,283,744.12
  5. Step 5: Solve for x
    x = 122,283,744.12/12,477.29
  6. Step 6: Final answer
    x = 9,800.51

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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.