Home / 12,389.14-17,100.21-7,610.68

Finding the Fourth Proportional to 12,389.14, 17,100.21 and 7,610.68

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Solution

The fourth proportional to 12,389.14, 17,100.21 and 7,610.68 is: 10,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.14 : 17,100.21 = 7,610.68 : x
  2. Step 2: Convert to fraction form
    12,389.14/17,100.21 = 7,610.68/x
  3. Step 3: Cross multiply
    12,389.14x = 17,100.21 × 7,610.68
  4. Step 4: Simplify right side
    12,389.14x = 130,144,226.24
  5. Step 5: Solve for x
    x = 130,144,226.24/12,389.14
  6. Step 6: Final answer
    x = 10,504.70

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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.