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Finding the Fourth Proportional to 18,347.46, 27,510.08 and 10,015.90

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Solution

The fourth proportional to 18,347.46, 27,510.08 and 10,015.90 is: 15,017.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.46 : 27,510.08 = 10,015.90 : x
  2. Step 2: Convert to fraction form
    18,347.46/27,510.08 = 10,015.90/x
  3. Step 3: Cross multiply
    18,347.46x = 27,510.08 × 10,015.90
  4. Step 4: Simplify right side
    18,347.46x = 275,538,302.50
  5. Step 5: Solve for x
    x = 275,538,302.50/18,347.46
  6. Step 6: Final answer
    x = 15,017.79

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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.