Home / 13,157.40-19,741.01-7,896.18

Finding the Fourth Proportional to 13,157.40, 19,741.01 and 7,896.18

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Solution

The fourth proportional to 13,157.40, 19,741.01 and 7,896.18 is: 11,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.40 : 19,741.01 = 7,896.18 : x
  2. Step 2: Convert to fraction form
    13,157.40/19,741.01 = 7,896.18/x
  3. Step 3: Cross multiply
    13,157.40x = 19,741.01 × 7,896.18
  4. Step 4: Simplify right side
    13,157.40x = 155,878,625.10
  5. Step 5: Solve for x
    x = 155,878,625.10/13,157.40
  6. Step 6: Final answer
    x = 11,847.22

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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.