Home / 12,084.51-18,113.46-9,113.43

Finding the Fourth Proportional to 12,084.51, 18,113.46 and 9,113.43

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Solution

The fourth proportional to 12,084.51, 18,113.46 and 9,113.43 is: 13,660.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,084.51 : 18,113.46 = 9,113.43 : x
  2. Step 2: Convert to fraction form
    12,084.51/18,113.46 = 9,113.43/x
  3. Step 3: Cross multiply
    12,084.51x = 18,113.46 × 9,113.43
  4. Step 4: Simplify right side
    12,084.51x = 165,075,749.77
  5. Step 5: Solve for x
    x = 165,075,749.77/12,084.51
  6. Step 6: Final answer
    x = 13,660.11

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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.