Home / 12,239.40-18,334.80-7,294.35

Finding the Fourth Proportional to 12,239.40, 18,334.80 and 7,294.35

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Solution

The fourth proportional to 12,239.40, 18,334.80 and 7,294.35 is: 10,927.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.40 : 18,334.80 = 7,294.35 : x
  2. Step 2: Convert to fraction form
    12,239.40/18,334.80 = 7,294.35/x
  3. Step 3: Cross multiply
    12,239.40x = 18,334.80 × 7,294.35
  4. Step 4: Simplify right side
    12,239.40x = 133,740,448.38
  5. Step 5: Solve for x
    x = 133,740,448.38/12,239.40
  6. Step 6: Final answer
    x = 10,927.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.