Home / 13,212.61-18,233.40-7,244.15

Finding the Fourth Proportional to 13,212.61, 18,233.40 and 7,244.15

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Solution

The fourth proportional to 13,212.61, 18,233.40 and 7,244.15 is: 9,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.61 : 18,233.40 = 7,244.15 : x
  2. Step 2: Convert to fraction form
    13,212.61/18,233.40 = 7,244.15/x
  3. Step 3: Cross multiply
    13,212.61x = 18,233.40 × 7,244.15
  4. Step 4: Simplify right side
    13,212.61x = 132,085,484.61
  5. Step 5: Solve for x
    x = 132,085,484.61/13,212.61
  6. Step 6: Final answer
    x = 9,996.93

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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.