Home / 12,389.54-17,094.84-7,355.43

Finding the Fourth Proportional to 12,389.54, 17,094.84 and 7,355.43

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Solution

The fourth proportional to 12,389.54, 17,094.84 and 7,355.43 is: 10,148.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.54 : 17,094.84 = 7,355.43 : x
  2. Step 2: Convert to fraction form
    12,389.54/17,094.84 = 7,355.43/x
  3. Step 3: Cross multiply
    12,389.54x = 17,094.84 × 7,355.43
  4. Step 4: Simplify right side
    12,389.54x = 125,739,898.98
  5. Step 5: Solve for x
    x = 125,739,898.98/12,389.54
  6. Step 6: Final answer
    x = 10,148.88

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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.