Home / 12,609.19-17,389.20-10,091.53

Finding the Fourth Proportional to 12,609.19, 17,389.20 and 10,091.53

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Solution

The fourth proportional to 12,609.19, 17,389.20 and 10,091.53 is: 13,917.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.19 : 17,389.20 = 10,091.53 : x
  2. Step 2: Convert to fraction form
    12,609.19/17,389.20 = 10,091.53/x
  3. Step 3: Cross multiply
    12,609.19x = 17,389.20 × 10,091.53
  4. Step 4: Simplify right side
    12,609.19x = 175,483,633.48
  5. Step 5: Solve for x
    x = 175,483,633.48/12,609.19
  6. Step 6: Final answer
    x = 13,917.12

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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.