Home / 11,157.51-15,396.27-6,681.18

Finding the Fourth Proportional to 11,157.51, 15,396.27 and 6,681.18

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Solution

The fourth proportional to 11,157.51, 15,396.27 and 6,681.18 is: 9,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.51 : 15,396.27 = 6,681.18 : x
  2. Step 2: Convert to fraction form
    11,157.51/15,396.27 = 6,681.18/x
  3. Step 3: Cross multiply
    11,157.51x = 15,396.27 × 6,681.18
  4. Step 4: Simplify right side
    11,157.51x = 102,865,251.20
  5. Step 5: Solve for x
    x = 102,865,251.20/11,157.51
  6. Step 6: Final answer
    x = 9,219.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.