Home / 12,011.67-18,006.54-5,434.26

Finding the Fourth Proportional to 12,011.67, 18,006.54 and 5,434.26

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Solution

The fourth proportional to 12,011.67, 18,006.54 and 5,434.26 is: 8,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.67 : 18,006.54 = 5,434.26 : x
  2. Step 2: Convert to fraction form
    12,011.67/18,006.54 = 5,434.26/x
  3. Step 3: Cross multiply
    12,011.67x = 18,006.54 × 5,434.26
  4. Step 4: Simplify right side
    12,011.67x = 97,852,220.06
  5. Step 5: Solve for x
    x = 97,852,220.06/12,011.67
  6. Step 6: Final answer
    x = 8,146.43

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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.