Home / 10,239.01-15,355.07-3,912.40

Finding the Fourth Proportional to 10,239.01, 15,355.07 and 3,912.40

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Solution

The fourth proportional to 10,239.01, 15,355.07 and 3,912.40 is: 5,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.01 : 15,355.07 = 3,912.40 : x
  2. Step 2: Convert to fraction form
    10,239.01/15,355.07 = 3,912.40/x
  3. Step 3: Cross multiply
    10,239.01x = 15,355.07 × 3,912.40
  4. Step 4: Simplify right side
    10,239.01x = 60,075,190.17
  5. Step 5: Solve for x
    x = 60,075,190.17/10,239.01
  6. Step 6: Final answer
    x = 5,867.29

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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.