Home / 18,607.90-27,912.69-5,281.84

Finding the Fourth Proportional to 18,607.90, 27,912.69 and 5,281.84

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Solution

The fourth proportional to 18,607.90, 27,912.69 and 5,281.84 is: 7,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.90 : 27,912.69 = 5,281.84 : x
  2. Step 2: Convert to fraction form
    18,607.90/27,912.69 = 5,281.84/x
  3. Step 3: Cross multiply
    18,607.90x = 27,912.69 × 5,281.84
  4. Step 4: Simplify right side
    18,607.90x = 147,430,362.55
  5. Step 5: Solve for x
    x = 147,430,362.55/18,607.90
  6. Step 6: Final answer
    x = 7,923.00

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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.