Home / 12,389.18-17,100.14-7,610.28

Finding the Fourth Proportional to 12,389.18, 17,100.14 and 7,610.28

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Solution

The fourth proportional to 12,389.18, 17,100.14 and 7,610.28 is: 10,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.18 : 17,100.14 = 7,610.28 : x
  2. Step 2: Convert to fraction form
    12,389.18/17,100.14 = 7,610.28/x
  3. Step 3: Cross multiply
    12,389.18x = 17,100.14 × 7,610.28
  4. Step 4: Simplify right side
    12,389.18x = 130,136,853.44
  5. Step 5: Solve for x
    x = 130,136,853.44/12,389.18
  6. Step 6: Final answer
    x = 10,504.07

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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.