Home / 13,201.09-18,206.71-9,417.58

Finding the Fourth Proportional to 13,201.09, 18,206.71 and 9,417.58

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Solution

The fourth proportional to 13,201.09, 18,206.71 and 9,417.58 is: 12,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.09 : 18,206.71 = 9,417.58 : x
  2. Step 2: Convert to fraction form
    13,201.09/18,206.71 = 9,417.58/x
  3. Step 3: Cross multiply
    13,201.09x = 18,206.71 × 9,417.58
  4. Step 4: Simplify right side
    13,201.09x = 171,463,147.96
  5. Step 5: Solve for x
    x = 171,463,147.96/13,201.09
  6. Step 6: Final answer
    x = 12,988.56

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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.