Home / 12,389.15-17,094.33-7,355.05

Finding the Fourth Proportional to 12,389.15, 17,094.33 and 7,355.05

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Solution

The fourth proportional to 12,389.15, 17,094.33 and 7,355.05 is: 10,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.15 : 17,094.33 = 7,355.05 : x
  2. Step 2: Convert to fraction form
    12,389.15/17,094.33 = 7,355.05/x
  3. Step 3: Cross multiply
    12,389.15x = 17,094.33 × 7,355.05
  4. Step 4: Simplify right side
    12,389.15x = 125,729,609.13
  5. Step 5: Solve for x
    x = 125,729,609.13/12,389.15
  6. Step 6: Final answer
    x = 10,148.36

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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.